US9918745B2 - Polyaxial bone anchor with pop-on shank and winged insert with friction fit compressive collet - Google Patents

Polyaxial bone anchor with pop-on shank and winged insert with friction fit compressive collet Download PDF

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US9918745B2
US9918745B2 US13573516 US201213573516A US9918745B2 US 9918745 B2 US9918745 B2 US 9918745B2 US 13573516 US13573516 US 13573516 US 201213573516 A US201213573516 A US 201213573516A US 9918745 B2 US9918745 B2 US 9918745B2
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receiver
shank
retainer
insert
surface
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US20130023941A1 (en )
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Roger P. Jackson
James L. Surber
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Roger P. Jackson
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7035Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
    • A61B17/7037Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other wherein pivoting is blocked when the rod is clamped
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7002Longitudinal elements, e.g. rods
    • A61B17/7004Longitudinal elements, e.g. rods with a cross-section which varies along its length
    • A61B17/7005Parts of the longitudinal elements, e.g. their ends, being specially adapted to fit in the screw or hook heads
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7002Longitudinal elements, e.g. rods
    • A61B17/7004Longitudinal elements, e.g. rods with a cross-section which varies along its length
    • A61B17/7008Longitudinal elements, e.g. rods with a cross-section which varies along its length with parts of, or attached to, the longitudinal elements, bearing against an outside of the screw or hook heads, e.g. nuts on threaded rods
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7002Longitudinal elements, e.g. rods
    • A61B17/7019Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other
    • A61B17/702Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other having a core or insert, and a sleeve, whereby a screw or hook can move along the core or in the sleeve
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7035Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
    • A61B17/7038Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other to a different extent in different directions, e.g. within one plane only
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7074Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
    • A61B17/7076Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation
    • A61B17/7082Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation for driving, i.e. rotating, screws or screw parts specially adapted for spinal fixation, e.g. for driving polyaxial or tulip-headed screws
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7074Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
    • A61B17/7091Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for applying, tightening or removing longitudinal element-to-bone anchor locking elements, e.g. caps, set screws, nuts or wedges
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Threaded wires, pins or screws; Nuts therefor
    • A61B17/864Threaded wires, pins or screws; Nuts therefor hollow, e.g. with socket or cannulated
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B2017/567Joint mechanisms or joint supports in addition to the natural joints and outside the joint gaps
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B2017/681Alignment, compression, or distraction mechanisms
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/08Accessories or related features not otherwise provided for
    • A61B2090/0807Indication means
    • A61B2090/0808Indication means for indicating correct assembly of components, e.g. of the surgical apparatus
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49826Assembling or joining

Abstract

A polyaxial bone screw assembly includes a threaded shank body having an integral upper portion receivable in an integral receiver, the receiver having an upper channel for receiving a longitudinal connecting member and a lower cavity cooperating with a lower opening. A down-loadable compression insert has a lower friction fit collet and an outer receiver press fit surface. A down-loadable retaining ring has at least one inner edge and outer tiered surfaces. The ring cooperates with the shank to provide for pop- or snap-on assembly of the shank with the receiver either prior to or after implantation of the shank into a vertebra. The shank and receiver once assembled cannot be disassembled. A uni-planar assembly is included.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of U.S. Provisional Patent Application Ser. No. 61/626,250 filed Sep. 23, 2011 that is incorporated by reference herein.

This application is also a continuation-in-part of U.S. patent application Ser. No. 13/573,303 filed Sep. 7, 2012 that claims the benefit of U.S. Provisional Patent Application Ser. No. 61/573,508 filed Sep. 7, 2011, both of which are incorporated by reference herein. This application is also a continuation-in-part of U.S. patent application Ser. No. 13/506,365 filed Apr. 13, 2012 that claims the benefit of U.S. Provisional Patent Application Ser. No. 61/517,088 filed Apr. 13, 2011, both of which are incorporated by reference herein. This application is also a continuation-in-part of U.S. patent application Ser. No. 13/385,212 filed Feb. 8, 2012 that claims the benefit of U.S. Provisional Patent Application Ser. No. 61/463,037 filed Feb. 11, 2011, both of which are incorporated by reference herein. This application is also a continuation-in-part of U.S. patent application Ser. No. 13/374,439 filed Dec. 29, 2011 is incorporated by reference herein. U.S. patent application Ser. No. 13/374,439 claims the benefit of U.S. Provisional Patent Application Ser. No. 61/460,267, filed Dec. 29, 2010 and U.S. Provisional Patent Application Ser. No. 61/463,037, filed Feb. 11, 2011. This application is also an continuation-in-part of U.S. patent application Ser. No. 13/373,289, filed Nov. 9, 2011 that claims the benefit of U.S. Provisional Patent Application Ser. No. 61/456,649 filed Nov. 10, 2010 and Provisional Patent Application Ser. No. 61/460,234 filed Dec. 29, 2010, all of which are incorporated by reference herein. This application is also a continuation-in-part of U.S. patent application Ser. No. 13/136,331 filed Jul. 28, 2011 that claims the benefit of U.S. Provisional Patent Application Ser. Nos. 61/400,504 filed Jul. 29, 2010, and 61/403,915 filed Sep. 23, 2010, all of which are incorporated by reference herein. This application is also a continuation-in-part of U.S. patent application Ser. No. 12/924,802 filed Oct. 5, 2010 that claims the benefit of the following U.S. Provisional Patent Application Ser. Nos.: 61/278,240, filed Oct. 5, 2009; 61/336,911, filed Jan. 28, 2010; 61/343,737 filed May 3, 2010; 61/395,564 filed May 14, 2010; 61/395,752 filed May 17, 2010; 61/396,390 filed May 26, 2010; 61/398,807 filed Jul. 1, 2010; 61/400,504 filed Jul. 29, 2010; 61/402,959 filed Sep. 8, 2010; 61/403,696 filed Sep. 20, 2010; and 61/403,915 filed Sep. 23, 2010, all of which are incorporated by reference herein. This application is also a continuation-in-part of U.S. patent application Ser. No. 12/802,849 filed Jun. 15, 2010 that claims the benefit of the following U.S. Provisional Patent Application Ser. Nos.: 61/268,708 filed Jun. 15, 2009; 61/270,754, filed Jul. 13, 2009; 61/336,911 filed Jan. 28, 2010; 61/395,564 filed May 14, 2010; 61/395,752 filed May 17, 2010; and 61/396,390 filed May 26, 2010, all of which are incorporated by reference herein.

BACKGROUND OF THE INVENTION

The present invention is directed to polyaxial bone screws for use in bone surgery, particularly spinal surgery and particularly to such screws with compression or pressure inserts and expansion lock split retainers to snap over, capture and retain the bone screw shank head in the receiver member assembly and later fix the bone screw shank with respect to the receiver assembly.

Bone screws are utilized in many types of spinal surgery in order to secure various implants to vertebrae along the spinal column for the purpose of stabilizing and/or adjusting spinal alignment. Although both closed-ended and open-ended bone screws are known, open-ended screws are particularly well suited for connections to rods and connector arms, because such rods or arms do not need to be passed through a closed bore, but rather can be laid or urged into an open channel within a receiver or head of such a screw. Generally, the screws must be inserted into the bone as an integral unit along with the head, or as a preassembled unit in the form of a shank and pivotal receiver, such as a polyaxial bone screw assembly.

Typical open-ended bone screws include a threaded shank with a pair of parallel projecting branches or arms which form a yoke with a U-shaped slot or channel to receive a rod. Hooks and other types of connectors, as are used in spinal fixation techniques, may also include similar open ends for receiving rods or portions of other fixation and stabilization structure.

A common approach for providing vertebral column support is to implant bone screws into certain bones which then in turn support a longitudinal structure such as a rod, or are supported by such a rod. Bone screws of this type may have a fixed head or receiver relative to a shank thereof, or may be of a polyaxial screw nature. In the fixed bone screws, the rod receiver head cannot be moved relative to the shank and the rod must be favorably positioned in order for it to be placed within the receiver head. This is sometimes very difficult or impossible to do. Therefore, polyaxial bone screws are commonly preferred. Open-ended polyaxial bone screws typically allow for a loose or floppy rotation of the head or receiver about the shank until a desired rotational position of the receiver is achieved by fixing such position relative to the shank during a final stage of a medical procedure when a rod or other longitudinal connecting member is inserted into the receiver, followed by a locking screw or other closure. This floppy feature can be, in some cases, undesirable, but may not be that detrimental in others. Also, it is often desirable to insert the bone screw shank separate from the receiver or head due to its bulk which can get in the way of what the surgeon needs to do. Such screws that allow for this capability are sometimes referred to as modular polyaxial screws.

SUMMARY OF THE INVENTION

An embodiment of a polyaxial bone screw assembly according to the invention includes a shank having an integral upper portion or integral radiused or spherical head and a body for fixation to a bone; a separate receiver defining an upper open channel, a central bore, a lower cavity and a lower opening; a top drop and turn in place lower compression insert; a resilient, tiered, expansion locking split retainer for capturing the shank head in the receiver lower cavity and a locking insert having a lower compression friction fit collet, the shank head being frictionally engaged with, but still movable in a non-floppy manner, if desired, with respect to the friction fit insert prior to locking of the shank into a desired configuration. The shank is finally locked into a fixed position relative to the receiver by frictional engagement between the shank head and the insert and the shank head and one or more inner edges of the split ring-like retainer due to a downward force placed on the compression insert by a closure top pressing on a rod, or other longitudinal connecting member, captured within the receiver bore and channel. In the illustrated embodiments, retainers and compression inserts are downloaded into the receiver, but uploaded embodiments are also foreseen. The shank head can be positioned into the receiver lower cavity at the lower opening thereof prior to or after insertion of the shank into bone. The illustrated compression insert includes a lock and release feature for independent locking of the polyaxial mechanism so the screw can be used like a fixed monoaxial screw. Also, the shank and other components of the assembly can be cannulated for minimally invasive surgery applications.

The expansion-only retainer ring base portion in an embodiment of the present invention is positioned entirely below the shank head hemisphere in the receiver and can be a stronger, more substantial structure to resist larger pull out forces on the assembly. Outer tiers of the retainer allow for a very low profile within the receiver base. The retainer ring base can also be better supported on a stepped lower portion of the receiver having one or more horizontal loading surfaces located near the lower opening in the bottom of the receiver. This design has been found to be stronger and more secure when compared to that of the prior art which uses some type of contractile locking engagement between the parts. Also, once assembled it cannot be disassembled.

A pre-assembled receiver, compression insert and friction fit split retainer may be “pushed-on”, “snapped-on” or “popped-on” to the shank head prior to or after implantation of the shank into a vertebra. Such a “snapping on” procedure includes the steps of uploading the shank head into the receiver lower opening, the shank head pressing against the base portion of the split retainer ring and expanding the resilient lower open retainer out into an expansion portion or chamber of the receiver cavity followed by an elastic return of the retainer back to a nominal or near nominal shape thereof after the hemisphere of the shank head or upper portion passes through the lower ring-like portion of the retainer. With the aid of tooling, the shank head enters into a friction fit engagement with a lower collet portion of the insert, the insert being pressed downwardly into a tapered portion of the receiver as well as against the shank head. In the illustrated embodiments, when the shank is ultimately locked between the compression insert and the lower portion of the retainer, at least one lower retainer edge surface locks against the shank head. The final fixation occurs as a result of a locking expansion-type of contact between the shank head and the lower edge portion of the split retainer and an expansion-type of non-tapered locking engagement between the lower portion of the retainer ring and the locking chamber in the lower portion of the receiver cavity. The retainer can expand more in the upper portion or expansion chamber of the receiver cavity to allow the shank head to pass through, but has restricted expansion to retain the shank head when the retainer lower ring portion is against the locking chamber surfaces in the lower portion of the receiver cavity and the shank head is forced down against the retainer ring during final locking. In some embodiments, when the polyaxial mechanism is locked, the pressure or compression insert is forced or wedged against a surface of the receiver resulting in an interference locking engagement, allowing for adjustment or removal of the rod or other connecting member without loss of a desired angular relationship between the shank and the receiver. This independent locking feature allows the polyaxial screw to function like a fixed monoaxial screw.

The lower pressure insert may also be configured to be independently locked by a tool or instrument, thereby allowing the pop-on polyaxial screw to be distracted, compressed and/or rotated along and around the rod to provide for improved spinal correction techniques. Such a tool engages the receiver from the sides and then engages outwardly extending winged arms of the insert to force or wedge the insert down into a locked position within the receiver. With the tool still in place and the correction maintained, the rod is then locked within the receiver channel by a closure top followed by removal of the tool. This process may involve multiple screws all being manipulated simultaneously with multiple tools to achieve the desired correction.

A pop-on uni-planar bone screw assembly according to an embodiment of the invention includes an open retainer and a shank head having cooperating structure to result in a shank that pivots only along a direction of the rod. The shank head includes opposed planar sides that cooperate with planar surfaces of the retainer, limiting pivot to a single plane.

Objects of the invention further include providing apparatus and methods that are easy to use and especially adapted for the intended use thereof and wherein the tools are comparatively inexpensive to produce. Other objects and advantages of this invention will become apparent from the following description taken in conjunction with the accompanying drawings wherein are set forth, by way of illustration and example, certain embodiments of this invention.

The drawings constitute a part of this specification and include exemplary embodiments of the present invention and illustrate various objects and features thereof.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded side elevational view of a polyaxial bone screw assembly according to an embodiment of the present invention including a shank, a receiver, an open, tiered, edge lock retainer and a top drop and turn in place lower compression insert having a compressive friction fit lower collet, and further shown with a portion of a longitudinal connecting member in the form of a rod and a closure top.

FIG. 2 is an enlarged top plan view of the shank of FIG. 1.

FIG. 3 is a reduced cross-sectional view taken along the line 3-3 of FIG. 2.

FIG. 4 is an enlarged perspective view of the receiver of FIG. 1.

FIG. 5 is a top plan view of the receiver of FIG. 4.

FIG. 6 is a bottom plan view of the receiver of FIG. 4.

FIG. 7 is a front elevational view of the receiver of FIG. 4.

FIG. 8 is a side elevational view of the receiver of FIG. 4 with portions broken away to show the detail thereof.

FIG. 9 is a cross-sectional view taken along the line 9-9 of FIG. 5.

FIG. 10 is an enlarged perspective view of the retainer of FIG. 1.

FIG. 11 is a top plan view of the retainer of FIG. 10.

FIG. 12 is a bottom plan view of the retainer of FIG. 10.

FIG. 13 is a front elevational view of the retainer of FIG. 10.

FIG. 14 is an enlarged cross-sectional view taken along the line 14-14 of FIG. 11.

FIG. 15 is an enlarged perspective view of the insert of FIG. 1.

FIG. 16 is a front elevational view of the insert of FIG. 15.

FIG. 17 is a bottom plan view of the insert of FIG. 15.

FIG. 18 is a top plan view of the insert of FIG. 15.

FIG. 19 is a side elevational view of the insert of FIG. 15 with portions broken away to show the detail thereof.

FIG. 20 is a cross-sectional view taken along the line 20-20 of FIG. 18.

FIG. 21 is an enlarged front elevational view of the retainer and receiver of FIG. 1 with portions of the receiver broken away to show the detail thereof, the retainer being shown dOwnloaded into the receiver (in phantom) to a tipped, partially inserted stage of assembly (also in phantom), to a compressed partially inserted stage (maximum state of compression) at a lower portion of the receiver cavity.

FIG. 22 is a front elevational view of the retainer and receiver with portions broken away, similar to what is shown in FIG. 21, showing the retainer positioned lower in the receiver cavity and further showing the insert in position for assembly with the receiver (in phantom) and the insert downloaded into the receiver to a location suitable for rotation within the receiver.

FIG. 23 is a perspective view of the retainer, receiver and insert, similar to what is shown in FIG. 22, further showing the insert being rotated within the receiver and the receiver being crimped against the insert to prohibit any further rotation of the insert with respect to the receiver.

FIG. 24 is a greatly reduced front elevational view of the assembly of FIG. 23 further shown with a torque tool.

FIG. 25 is an enlarged and partial front elevational view, similar to FIG. 24 with portions broken away to show the detail thereof and showing the torque tool threaded onto the receiver.

FIG. 26 is an enlarged and partial front elevational view with portions broken away, similar to FIG. 25 and further showing a first stage of assembly with the shank of FIG. 1, also shown in enlarged and partial front elevation, a hemisphere of the shank head and the vertebra portion are both shown in phantom.

FIG. 27 is a partial front elevational view with portions broken away, similar to FIG. 26, and further showing the shank in a stage of assembly with the receiver and retainer, the retainer being in a fully expanded state about a mid-portion of the shank head.

FIG. 28 is a partial front elevational view with portions broken away, similar to FIG. 27, the spherical shank upper portion or head shown fully captured by the retainer.

FIG. 29 is an enlarged and partial perspective view of the assembly as shown in FIG. 28, illustrating a marking on the insert (shown by a plurality of x's)that is above a marking on the receive (also shown by x's), indicating that the insert is not locked with respect to the receiver.

FIG. 30 is a perspective view of a counter torque tool for use with some assemblies of the invention.

FIG. 30a is an enlarged and partial perspective view of the tool of FIG. 30.

FIG. 31 is a perspective view of a torque handle for use with some assemblies of the invention.

FIG. 32 is a front elevational view of the tools of FIGS. 30 and 31 shown cooperating with the assembly of FIG. 28, shown in reduced front elevation.

FIG. 33 is an enlarged and partial front elevational view of the assembly and tools of FIG. 32 with portions broken away to show the detail thereof, showing the torque tool pressing the insert down into friction fit engagement with the shank head.

FIG. 34 is a further enlarged and partial front elevational view with portions broken away of the assembly and tools as shown in FIG. 33.

FIG. 35 is an enlarged and partial front elevational view, similar to FIG. 34, showing the torque tool being slightly backed up and off of the insert with the insert remaining in frictional fit with the shank head.

FIG. 36 is a partial perspective view of the assembly of FIG. 35 showing markings on the insert and the receiver in alignment indicating that the insert is in friction fit engagement with the shank, providing for non-floppy, but still movable pivoting of the shank with respect to the receiver.

FIG. 37 is a reduced and exploded perspective view of a driver handle and bone screw driver for use with the torque tool and bone screw assembly of FIG. 36.

FIG. 38 is an enlarged and partial front elevational view of the tools and bone screw assembly of FIG. 37, shown assembled and ready for driving the shank into a vertebra.

FIG. 39 is an enlarged and partial view of the bone screw assembly of FIG. 38 with bone screw driving and torque tools removed and also with the rod and closure top of FIG. 1, also shown in front elevation.

FIG. 40 is a reduced and exploded front elevational view of a closure top driver and handle and the counter torque tool of FIG. 30 and shown with the bone screw assembly of FIG. 39.

FIG. 41 is a front elevational view with portions broken away of the tool and bone screw assembly of FIG. 40.

FIG. 42 is an enlarged and partial front elevational view with portions broken away of the tool and bone screw assembly of FIG. 41.

FIG. 43 is an enlarged and partial perspective view of the assembly of FIG. 42 with tooling removed, showing the insert locked against the shank head and the receiver inner surface, the assembly polyaxial mechanism in a fully locked position.

FIG. 44 is an enlarged and partial front elevational view with portions broken away of the locked assembly of FIG. 44.

FIG. 45 is a reduced and partial front elevational view with portions broken away, similar to FIG. 44, showing the closure top driver (in phantom) and the counter torque tool mounted back on the assembly to loosen the closure top and the rod without loosening the polyaxial mechanism as the insert is locked against the receiver, allowing the assembly to function like a monoaxial screw and allow a surgeon to further manipulate the rod and the screws.

FIG. 46 is an enlarged and partial front elevational view with portions broken away similar to FIG. 36, showing the assembly prior to locking and thus the receiver being pivotable in a non-floppy manner with respect to the shank.

FIG. 47 is an enlarged and partial front elevational view with portions broken away, similar to FIG. 47, showing a rod and closure top being locked down by the driver and counter torque tool of FIG. 42, but with the receiver disposed at an angle with respect to the shank.

FIG. 48 is a reduced front elevational view of the shank of FIG. 1 shown with a shank driver and handle.

FIG. 49 is an enlarged and partial front elevational view of the shank and driver of FIG. 48.

FIG. 50 is another partial front elevational view of the shank of FIG. 49 shown with the driver removed after driving the shank into a vertebra, and further showing the assembly and tooling of FIG. 25 in front elevation with portions broken away at an assembly stage of being placed into position above the implanted shank head.

FIG. 51 is a partial front elevational view with portions broken away of the assembly of FIG. 50 showing the receiver popped into place over the shank.

FIG. 52 is a partial front elevational view with portions broken away of the assembly of FIG. 51 showing the receiver being pivoted at an angle with respect to the implanted shank.

FIG. 53 is a reduced front elevational view of the assembly of FIG. 52 equipped with the tooling shown in FIG. 32 (torque driver, counter torque tool and handle) for pressing the insert into friction fit cooperation with the shank to maintain the desired angle of the shank with respect to the receiver during remaining steps of implantation.

FIG. 54 is an enlarged and partial front elevational view with portions broken away of the friction fit tightened bone screw assembly of FIG. 53 with the tools removed and a rod and closure top inserted into the receiver.

FIG. 55 is a reduced and partial front elevational view with portions broken away of the assembly of FIG. 54 equipped with the tools shown in FIG. 40 (closure top driving tool, handle and counter torque tool) for locking the insert against both the shank head and the receiver inner surface by driving down the closure top into a final fully mated position.

FIG. 56 is an enlarged and partial perspective view with portions broken away of the assembly of FIG. 55 with the tools removed after fixing the closure top and thus the rod and insert into place, locking the polyaxial mechanism, the shank shown at an eighteen degree angle (cephalad) with the rod shown in phantom.

FIG. 57 is another enlarged and partial perspective view with portions broken away of the assembly of FIG. 55 with the tools removed, but wherein the degree of the angle between the shank and receiver was set to thirty degrees (caudad) prior to locking.

FIG. 58 is a perspective view of an alternative favored angle receiver according to an embodiment of the invention.

FIG. 59 is a reduced and partial perspective view of the receiver of FIG. 58 shown assembled with the shank, retainer, insert, rod and closure top of FIG. 1 and the shank being at a forty degree angle with respect to the alternative receiver.

FIG. 60 is a perspective view of a set of four sleeves according to an embodiment of the invention for use with bone screw assembly embodiments of the invention.

FIG. 61 is a reduced and partial perspective view of one of the sleeves of FIG. 60 shown assembled with a bone screw assembly of FIG. 1, with the rod and closure top of FIG. 1 removed and replaced by a cord (not shown) and the sleeve and an alternative cord-gripping closure top.

FIG. 62 is an enlarged side elevational view of the assembly of FIG. 61 with portions broken away to show the detail thereof.

FIG. 63 is another perspective view of the sleeve of FIG. 61 shown assembled with the bone screw of FIG. 1 in a manner similar to that shown in FIG. 61, but with the “slipping” closure top of FIG. 1 in lieu of the cord gripping closure top of FIG. 61 and further shown with a cord (in phantom) and a pair of transparent compressible spacers located about the cord and at either side of the sleeve.

FIG. 64 is an enlarged perspective view of one of the sleeves of FIG. 63.

FIG. 65 is a front elevational view of the sleeve of FIG. 64.

FIG. 66 is a partial perspective view of the bone screw assembly similar to that shown in FIG. 63, but with a different sleeve shown in FIG. 60, the cord shown in phantom, one of the spacers being replaced with a bumper (shown transparent) and blocker/set screw combination, the set screw having a break off head.

FIG. 67 is an enlarged and partial front elevational view of the bone screw assembly of FIG. 66 with portions broken away to show the detail thereof.

FIG. 68 is a reduced and partial side elevational view of the entire assembly of FIG. 66 with portions broken away to show the detail thereof.

FIG. 69 is a reduced and partial front elevational view of the assembly of FIG. 68 shown with the set screw break off head removed.

FIG. 70 is an enlarged and partial perspective view showing one of the sleeves of FIG. 60 assembled with a receiver, retainer and insert of FIG. 1 and further shown with a torque tool, the assembly ready to be popped onto a shank.

FIG. 71 is a reduced and partial front elevational view of two screw assemblies with sleeves of FIG. 60, a spacer and a pair of torque tubes, the dual assembly being shown just prior to popping onto two implanted bone screw shanks in an open manner.

FIG. 72 is an enlarged perspective view of an alternative insert according to an embodiment of the invention.

FIG. 73 is a partial front elevational view with portions broken away of the alternative insert of FIG. 72 shown assembled with an alternative receiver and the other components of the assembly shown in FIG. 1.

FIG. 74 is a partial front elevational view of an alternative uni-planar shank shown assembled with a uni-planar retainer according to an embodiment of the invention for use with the other components of the assembly of FIG. 1, with the exception that the receiver of FIG. 1 is modified (not shown) to include a stop that limits rotation of the alternative retainer with respect to the receiver.

FIG. 75 is an enlarged perspective view of the uni-planar shank of FIG. 74.

FIG. 76 is an enlarged and partial side elevational view of the shank of FIG. 75.

FIG. 77 is a partial front elevational view of the shank of FIG. 75.

FIG. 78 is another enlarged and partial perspective view of the shank of FIG. 75.

FIG. 79 is an enlarged top plan view of the shank of FIG. 75.

FIG. 80 is a reduced cross-sectional view taken along the line 80-80 of FIG. 79.

FIG. 81 is an enlarged perspective view of the alternative uni-planar retainer of FIG. 74.

FIG. 82 is a front elevational view of the retainer of FIG. 81.

FIG. 83 is a bottom plan view of the retainer of FIG. 81.

FIG. 84 is a top plan view of the retainer of FIG. 81.

FIG. 85 is an enlarged perspective view of the retainer of FIG. 81 with portions broken away to show the detail thereof.

FIG. 86 is an enlarged cross-sectional view taken along the line 86-86 of FIG. 84.

FIG. 87 is a reduced perspective view of the retainer of FIG. 81 shown being inserted into an alternative receiver embodiment of the invention, also shown in perspective view with portions broken away to show the detail thereof.

FIG. 88 is a perspective view with portions broken away, similar to FIG. 87 showing the retainer seated in the receiver with the retainer slit being fitted over a projection of the receiver, aligning the retainer to allow for a shank to pivot only in the same plane as a later inserted rod.

FIG. 89 is a reduced and partial front elevational view of the shank of FIG. 75 shown being inserted into an assembly made of the modified receiver of FIG. 87 and the insert and closure top of FIG. 1 along with the alternative retainer of FIG. 81 and utilizing the torque tool of FIG. 24.

FIG. 90 is an enlarged and partial perspective view of the assembly of FIG. 89 shown with the receiver removed and a rod shown in phantom

FIG. 91 is an enlarged and partial perspective view of the uni-planar retainer and the uni-planar shank (other components removed) to show the limited, single plane angulation possible due to the cooperation between the retainer (apertures) and the shank (keyed), with the rectangle in phantom indicating the projection from the receiver that fits in the gap of the open retainer and limits rotation of the retainer with respect to the receiver.

FIG. 92 is a partial perspective view with portions broken away of a fully locked bone screw assembly utilizing the uni-planar shank and retainer of FIG. 74.

FIG. 93 is a reduced and partial perspective view of the assembly of FIG. 92 with the shank shown at an angle with respect to the receiver, a direction of angulation of the shank being in the same plane as the rod (shown in phantom).

FIG. 94 is an enlarged and partial side elevational view of the assembly of FIG. 93 with portions broken away to show the detail thereof.

DETAILED DESCRIPTION OF THE INVENTION

As required, detailed embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which may be embodied in various forms. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately detailed structure. It is also noted that any reference to the words top, bottom, up and down, and the like, in this application refers to the alignment shown in the various drawings, as well as the normal connotations applied to such devices, and is not intended to restrict positioning of the bone attachment structures in actual use.

With reference to FIGS. 1-59, the reference number 1 generally represents a polyaxial bone screw apparatus or assembly according to the present invention. The assembly 1 includes a shank 4, that further includes a body 6 integral with an upwardly extending upper portion or head 8; a receiver 10; an open dual edge lock retainer 12, and a crown-like compression or pressure insert 14 having a lower friction fit compression collet. The receiver 10, retainer 12 and compression insert 14 are initially assembled and may be further assembled with the shank 4 either prior or subsequent to implantation of the shank body 6 into a vertebra 17, as will be described in greater detail below. FIGS. 1 and 43-44 further show a closure structure 18 for capturing a longitudinal connecting member, for example, a rod 21 which in turn engages the compression insert 14 that presses against the shank head 8 into fixed frictional contact with the retainer 12, so as to capture, and fix the longitudinal connecting member 21 within the receiver 10 and thus fix the member 21 relative to a vertebra 17. The receiver 10 and the shank 4 cooperate in such a manner that the receiver 10 and the shank 4 can be secured at any of a plurality of angles, articulations or rotational alignments relative to one another and within a selected range of angles both from side to side and from front to rear, to enable flexible or articulated engagement of the receiver 10 with the shank 4 until both are locked or fixed relative to each other near the end of an implantation procedure. The illustrated rod 21 is hard, stiff, non-elastic and cylindrical, having an outer cylindrical surface 22. In some embodiments, the rod 21 may be elastic, deformable and/or of different materials and cross-sectional geometries. It is foreseen that in other embodiments (not shown) the closure top could deform the rod and press directly on the insert 14.

The shank 4, best illustrated in FIGS. 1-3, is elongate, with the shank body 6 having a helically wound bone implantable thread 24 (single or dual lead thread form and different thread types) extending from near a neck 26 located adjacent to the upper portion or head 8, to a tip 28 of the body 6 and extending radially outwardly therefrom. During use, the body 6 utilizing the thread 24 for gripping and advancement is implanted into the vertebra 17 leading with the tip 28 and driven down into the vertebra with an installation or driving tool (not shown), so as to be implanted in the vertebra to a location at or near the neck 26. The shank 4 has an elongate axis of rotation generally identified by the reference letter A.

The neck 26 extends axially upward from the shank body 6. The neck 26 may be of the same or is typically of a slightly reduced radius as compared to an adjacent upper end or top 32 of the body 6 where the thread 24 terminates. Further extending axially and outwardly from the neck 26 is the shank upper portion or head 8 that provides a connective or capture apparatus disposed at a distance from the upper end 32 and thus at a distance from the vertebra 17 when the body 6 is implanted in such vertebra.

The shank upper portion 8 is configured for a pivotable connection between the shank 4 and the retainer 12 and receiver 10 prior to fixing of the shank 4 in a desired position with respect to the receiver 10. The shank upper portion 8 has an outer, convex and substantially spherical surface 34 that extends outwardly and upwardly from the neck 26 to a top surface or rim 38. In the illustrated embodiment, a frusto-conical surface 39 is located between the spherical surface 34 and the rim 38 to provide for greater angulation of the shank with respect to the receiver, providing additional clearance during pivoting of the shank with respect to the receiver 10 and the insert 14. The spherical surface 34 has an outer radius configured for temporary frictional, non-floppy, sliding cooperation with a lower collet portion of the insert as well as ultimate frictional engagement with the retainer 12 at at least one lower inner edge thereof. In FIG. 1 and some of the other figures, a dotted line 40 designates a hemisphere of the spherical surface 34. The spherical surface 34 shown in the present embodiment is substantially smooth, but in some embodiments may include a roughening or other surface treatment and is sized and shaped for cooperation and ultimate frictional engagement with the compression insert 14 as well as ultimate frictional engagement with a lower ring-like edge of the retainer 12. The shank spherical surface 34 is locked into place exclusively by the insert 14 and the retainer 12 lower edge or edges and not by inner surfaces defining the receiver cavity.

A counter sunk and stepped or graduated annular seating surface or base 45 partially defines a portion of an internal drive feature or imprint 46. In some embodiments of the invention, the surface 45 is substantially planar.

The illustrated internal drive feature 46 is an aperture formed in the top 38 and has a hex shape designed to receive a tool (not shown) of an Allen wrench type, into the aperture for rotating and driving the bone screw shank 4 into the vertebra 17. It is foreseen that such an internal tool engagement structure may take a variety of tool-engaging forms and may include one or more apertures of various shapes, such as a pair of spaced apart apertures or a multi-lobular or star-shaped aperture. The graduated seat or base surfaces 45 of the drive feature 46 are disposed substantially perpendicular to the axis A with the drive feature 46 otherwise being coaxial with the axis A. As illustrated in FIGS. 2 and 3, the drive seat 45 having beveled or stepped surfaces advantageously further enhances gripping with the driving tool. In operation, a driving tool is received in the internal drive feature 46, being seated at the base 45 and engaging the faces of the drive feature 46 for both driving and rotating the shank body 6 into the vertebra 17, either before or after the shank 4 is connected to the receiver 10 via the retainer 12, the driving tool extending into the receiver 10 when the shank 4, retainer 12 and receiver 10 combination is driven into the vertebra 17.

The shank 4 shown in the drawings is cannulated, having a small central bore 50 extending an entire length of the shank 4 along the axis A. The bore 50 is defined by an inner cylindrical wall of the shank 4 and has a circular opening at the shank tip 28 and an upper circular opening communicating with the external drive 46 at the driving seat 45. The bore 50 is coaxial with the threaded body 6 and the upper portion or head 8. The bore 50 provides a passage through the shank 4 interior for a length of wire (not shown) inserted into the vertebra 17 prior to the insertion of the shank body 6, the wire providing a guide for insertion of the shank body 6 into the vertebra 17. It is foreseen that the shank could be solid and made of different materials, including metal and non-metals.

To provide a biologically active interface with the bone, the threaded shank body 6 may be coated, perforated, made porous or otherwise treated. The treatment may include, but is not limited to a plasma spray coating or other type of coating of a metal or, for example, a calcium phosphate; or a roughening, perforation or indentation in the shank surface, such as by sputtering, sand blasting or acid etching, that allows for bony ingrowth or ongrowth. Certain metal coatings act as a scaffold for bone ingrowth. Bio-ceramic calcium phosphate coatings include, but are not limited to: alpha-tri-calcium phosphate and beta-tri-calcium phosphate (Ca3(PO4)2, tetra-calcium phosphate (Ca4P2O9), amorphous calcium phosphate and hydroxyapatite (Ca10(PO4)6(OH)2). Coating with hydroxyapatite, for example, is desirable as hydroxyapatite is chemically similar to bone with respect to mineral content and has been identified as being bioactive and thus not only supportive of bone ingrowth, but actively taking part in bone bonding.

With particular reference to FIGS. 1 and 4-9, the receiver 10 has a generally U-shaped appearance with partially discontinuous cylindrical inner and outer profiles as well as planar and other curved surfaces. The receiver 10 has an axis of rotation B that is shown in FIG. 1 as being aligned with and the same as the axis of rotation A of the shank 4, such orientation being desirable, but not required during assembly of the receiver 10 with the shank 4. After the receiver 10 is pivotally attached to the shank 4, either before or after the shank 4 is implanted in a vertebra 17, the axis B is typically disposed at an angle with respect to the axis A.

The receiver 10 includes a base 60 forming an inner cavity, generally 61. Two opposed arms 62 extend upwardly from the base 60 and form a U-shaped channel 64 having an opening 66. Other features of the receiver 10 include, but are not limited to inner receiver arms surfaces, generally 70 that include a guide and advancement structure 72 located near arm top surfaces 73. In the illustrated embodiment, the guide and advancement structure 72 is a partial helically wound interlocking flangeform configured to mate under rotation with a similar structure on the closure structure 18. However, it is foreseen that for certain embodiments of the invention, the guide and advancement structure 72 could alternatively be a square-shaped thread, a buttress thread, a reverse angle thread or other thread-like or non-thread-like helically wound discontinuous advancement structures, for operably guiding under rotation and advancing the closure structure 18 downward between the arms 62, as well as eventual torquing when the closure structure 18 abuts against the rod 21 or other longitudinal connecting member. It is foreseen that the arms 62 could have break-off extensions.

An opposed pair of vertically extending outer grooves, generally 74, running substantially parallel to the receiver axis B are centrally formed in outer curved convex surfaces 76 of the arms 62. Each groove 74 runs centrally from the respective arm top surface 73 and terminates at a a through aperture 77. Each aperture 77 extends through the respective arm to the respective inner arm surface 70 and is located spaced from the receiver base 60. The grooves 74 may be slightly dovetailed for easily receiving an elongate tool (not shown) that enters into the groove 74 at the arm top surface 73 and is kept in close sliding contact with a surface 81 by the orientation of the surfaces defining the groove.

At the through aperture 77, the groove 74 terminates and directly there below are a pair of facing generally c-shaped ears 83 that do not extend completely through the respective arm 62, but rather include a thin wall that provides a crimping portion or wall 84. The total of four crimping portions or walls 84 are sized and shaped for pressing or crimping some or all of the wall material into walls or grooves of the insert 14 to prohibit rotation and misalignment of the insert 14 with respect to the receiver 10 as will be described in greater detail below. In other embodiments of the invention, other surfaces at or near the grooves 74 may be inwardly crimped. The illustrated through aperture 77 located below each grooves 74 is substantially the same width as the groove 74 there-above, resulting in the aperture 77 having a substantially rectangular profile.

The receiver 10 is a one-piece or integral structure and is devoid of any spring tabs or collet-like structures. Preferably the insert and/or receiver are configured with structure for blocking rotation of the insert with respect to the receiver, such as the crimp walls 84, but allowing some up and down movement of the insert with respect to the receiver during the assembly and implant procedure.

Returning to the interior surface 70 of the receiver arms 62, located below the guide and advancement structure 72 is a discontinuous cylindrical surface 92 partially defining a run-out feature for the guide and advancement structure 72. The cylindrical surface 92 is sized and shaped to receive an upper winged portion of the insert 14. Therefore, the surface 92 has a diameter greater than a greater diameter of the guide and advancement structure 72. The receiver arms may further includes sloped, stepped or chamfered surfaces above and below the surface 92. Directly below the surface 92 at or near the crimping walls 84 is at least one lip 92′ that extends inwardly towards the aperture 77 and functions as a slight stop for the insert 14. Adjacent the lip 92′ is an indicator strip “X” that functions in cooperation with an indicator strip “XX” of the insert for allowing a user to know if the polyaxial bone screw is in a loose or floppy state, a movable, non-floppy friction fit state, or a locked up state. Moving downwardly into the receiver cavity 61, features include a ledge 94 adjacent to a discontinuous cylindrical surface 95 providing a locking, interference fit surface for the insert 14, a continuous tapered or frusto-conical surface 97 providing a friction fit surface for the collet portion of the insert, a retainer expansion chamber portion defined in greater part by a cylindrical surface 98 adjacent an annular expansion chamber ceiling surface 98′, a lower stepped or tiered retainer seating surface, generally 104 having a bottom annular surface 103, a lower flared or tapered surface 107 opening to a bottom exterior surface 108 at a bottom opening, generally 110 of the receiver.

With particular reference to FIGS. 1 and 10-14, the lower open or split friction fit retainer 12, that operates to capture the shank upper portion 8 within the receiver 10 is shown. The retainer 12 has a central axis that is operationally the same as the axis B associated with the receiver 10 when the shank upper portion 8 and the retainer 12 are installed within the receiver 10. The retainer 12 is essentially an open ring having an outer stepped or tiered surface 120 followed by an outer tapered or frusto-conical surface 121, a bottom surface 122, and a top planar surface 126. The retainer ring 12 is made from a resilient material, such as a stainless steel or titanium alloy, so that the retainer 12 may be contracted during assembly with the receiver and expanded about the shank head 8. The retainer 12 has a central channel or hollow through bore, generally 141, that passes entirely through the retainer 12 from the top surfaces 126 to the bottom surface 122 of the retainer body. Surfaces that define the channel or bore 141 include a discontinuous inner lower frusto-conical surface 143 adjacent to the retainer body bottom surface 122, a discontinuous, substantially cylindrical surface 145 adjacent the frusto-conical surface 143 and a discontinuous annular step 146 located adjacent the cylindrical surface 145, the surface 146 being substantially parallel to the bottom surface 122. Shank gripping edges created by the retainer surfaces include a lower edge or edge surface 148 and an upper edge surface 148′ located at the retainer top 126. It is foreseen that there may be more or less than two shank gripping edge surfaces. A slit, generally 149 runs through the retainer 14, creating an opening generally perpendicular to the top and bottom surfaces. In some embodiments, such a slit may run obtuse to the bottom surface 122. In the illustrated embodiment, the slit 149 runs substantially perpendicular to the surfaces 122. The slit 149 is primarily for expansion of the retainer 12 during pop-on or snap-on assembly with the shank head 8. However, the slit 149 also compresses during assembly with the receiver 10 as will be described in greater detail below. At the location of the slit 149, a curved concave, cut-out surface 150 is formed in the bottom surface 122, the frusto-conical surface 143 and the cylindrical surface 145, as well as into the stepped portion 146. The surface 150 is radiused or otherwise curved for engagement with the shank head 8 at the surface 34. In the illustrated embodiment, the cut-out surface 150 is located substantially equally on either side of the slit 149 to provide for a desirable increased angle of orientation between the shank 8 and the retainer 12 and thus a desirable increased angle of articulation between the shank 8 and the receiver 10. The rotatability of the retainer 12 with respect to the receiver 10 allows for manipulation and placement of such an increased angle of articulation to a location desired by a surgeon. The through slit 149 of the resilient retainer 12 is defined by first and second end surfaces, 152 and 153 disposed in substantially parallel spaced relation to one another when the retainer is in a neutral or nominal state. Both end surfaces 152 and 153 are disposed perpendicular to the bottom surface 122, but in some embodiments may be disposed at an obtuse angle thereto. A width between the surfaces 152 and 153 is narrow to provide stability to the retainer 12 during operation, but wide enough to allow for some compression of the retainer during assembly as will be described in greater detail below. Because the retainer 12 is top loadable in a substantially neutral state and ultimately expands during locking of the polyaxial mechanism, the width of the slit 149 may be much smaller than might be required for a bottom loaded compressible retainer ring. It has been found that once the retainer 12 is expanded about the shank head 8, the retainer 12 may return to a new nominal or neutral orientation in which a gap between the surfaces 152 and 153 is slightly greater than the gap shown in the nominal state of FIG. 11, for example.

With particular reference to FIGS. 1 and 15-20, the locking compression insert 14 with a lower friction fit compressive collet is illustrated that is sized and shaped to be received by and down-loaded into the receiver 10 at the upper opening 66. The compression insert 14 has an operational central axis that is the same as the central axis B of the receiver 10. In operation, the insert advantageously frictionally engages the bone screw shank upper portion 8 as well as engaging the receiver 10 in an interference fit engagement, locking the shank 4 in a desired angular position with respect to the receiver 10 that remains in such locked position even if, for example, a rod and closure top are later removed and the rod is replaced with another rod or other longitudinal connecting member or member component, such as one of the sleeves shown in FIGS. 60-71. Such locked position may also be released by the surgeon if desired with insert engaging tools (not shown). The insert 14 actually includes two outer locking surfaces, one for interference fit as described above and a second lower collet surface that engages the receiver frusto-conical surface 97 and the shank head 8 to provide an interim, non-floppy friction fit, if desired, during certain times as required by the surgeon. The insert 14 is preferably made from a solid resilient material, such as a stainless steel or titanium alloy, so that portions of the insert may be grasped, pinched or pressed, if necessary, and un-wedged from the receiver 10 with a release tool.

Features of the locking and friction fit insert 14 include a substantially upper body 156 integral with a pair of upstanding arms 157. A lower body or collet body 158 is also substantially cylindrical. Located beneath each upstanding arm 157 is a discontinuous, cylindrical, interference fit surface 159 that extends outwardly from an arm and lower collet body outer substantially cylindrical surface 160, a diameter of the surface 159 being larger than a diameter of the surface 160. A lower ledge surface 162 partially defines the interference fit surface.

The insert 14 further includes substantially planar arm top surfaces 165 located opposite the bottom surface 164. Adjacent the top surfaces 165 of the arms 157 are outwardly extending wings 168. The wings 168 are partially defined by outer partially cylindrical surfaces 170 and by lower surfaces 171, the upper surfaces 169 and the lower surfaces 171 being substantially parallel to on another. Opposed side surfaces 172 span between top and bottom surfaces 169 and 171 respectively, of each wing 168, the side surfaces 172 being substantially perpendicular to adjacent top and bottom surfaces 169 and 171. The cylindrical surfaces 170 are sized and shaped for sliding rotation within the receiver arm cylindrical surfaces 92 during assembly of the insert 14 with the receiver 10.

Returning to the inner surfaces of the insert 14, a through bore, generally 173, is disposed primarily within and through the insert 14 and communicates with a generally U-shaped through channel formed by a saddle surface 174 that is substantially defined by the upstanding arms 157. Near the top surfaces 165, the saddle surface 174 is substantially planar, with apertures 167 extending thereinto. The saddle 174 has a lower seat 175 sized and shaped to closely, snugly engage the rod 21 or other longitudinal connecting member. It is foreseen that an alternative embodiment may be configured to include planar holding surfaces that closely hold a square or rectangular bar as well as hold a cylindrical rod-shaped, cord, or sleeved cord longitudinal connecting member

The bore, generally 173, is further defined by an inner cylindrical surface 177 that communicates with the seat 175 and a lower concave, radiused inner collet surface 178 having a radius or surface for closely mating with the surface 34 of the shank upper portion 8. The inner collet surface 178 is discontinuous, being broken up by at least four spaced grooves 170 that run from the bottom surface 164 upwardly toward the insert upper body 158, terminating at or near a shank gripping surface portion, generally 180. The surface 178 terminates at the base surface 164. The gripping surface 180 is located between the cylindrical surface 177 and the lower radiused surface 178. The gripping surface portion 180 includes one or more stepped surfaces or ridges sized and shaped to grip and penetrate into the shank head 8 when the insert 14 is finally locked against the head surface 34. It is foreseen that the shank gripping surface portion 180 and also the surface 178 may additionally or alternatively include a roughened or textured surface or surface finish, or may be scored, knurled, or the like, for enhancing frictional engagement with the shank upper portion 8.

The compression insert 14 through bore 173 is sized and shaped to receive a driving tool therethrough that engages the shank drive feature 46 when the shank body 6 is driven into bone with the receiver 10 attached. Also, in some locking embodiments of the invention, the bore receives a manipulation tool used for releasing the insert from a locked position with the receiver, the tool pressing down on the shank and also gripping the insert at the apertures 167, or with other tool engaging features. Each of the arms 157 and the insert body 156 may include more surface features, such as cut-outs notches, bevels, etc. to provide adequate clearance for inserting the insert 14 into the receiver and cooperating with the retainer 12 during the different assembly steps.

The insert body has a diameter slightly smaller than a diameter between crests of the guide and advancement structure 72 of the receiver 10, allowing for top loading of the compression insert 14 into the receiver opening 66, with the arms 157 of the insert 14 being located between the receiver arms 62 during insertion of the insert 14 into the receiver 10. Once the arms 157 of the insert 14 are generally located beneath the guide and advancement structure 72, the insert 14 is rotated into place about the receiver axis B with the wings 168 entering the receiver groove formed by the cylindrical surface 92 until the wings are located in the apertures 77.

With reference to FIGS. 1 and 42-45, for example, the illustrated elongate rod or longitudinal connecting member 21 (of which only a portion has been shown) can be any of a variety of implants utilized in reconstructive spinal surgery, but is typically a cylindrical, elongate structure having an outer substantially smooth, cylindrical surface 22 of uniform diameter. The rod 21 may be made from a variety of metals, metal alloys, non-metals and deformable and less compressible plastics, including, but not limited to rods made of elastomeric, polyetheretherketone (PEEK) and other types of materials, such as polycarbonate urethanes (PCU) and polyethelenes.

Longitudinal connecting members for use with the assembly 1 may take a variety of shapes, including but not limited to rods or bars of oval, rectangular or other curved or polygonal cross-section. The shape of the insert 14 may be modified so as to closely hold the particular longitudinal connecting member used in the assembly 1. Some embodiments of the assembly 1 may also be used with a tensioned cord as will be described in greater detail with reference to FIGS. 60-71. Such a cord may be made from a variety of materials, including polyester or other plastic fibers, strands or threads, such as polyethylene-terephthalate. Furthermore, the longitudinal connector may be a component of a longer overall dynamic stabilization connecting member, with cylindrical or bar-shaped portions sized and shaped for being received by the compression insert 14 of the receiver having a U-shaped, rectangular- or other- shaped channel, for closely receiving the longitudinal connecting member. The longitudinal connecting member may be integral or otherwise fixed to a bendable or damping component that is sized and shaped to be located between adjacent pairs of bone screw assemblies 1, for example. A damping component or bumper may be attached to the longitudinal connecting member at one or both sides of the bone screw assembly 1. A rod or bar (or rod or bar component) of a longitudinal connecting member may be made of a variety of materials ranging from deformable plastics to hard metals, depending upon the desired application. Thus, bars and rods may be made of materials including, but not limited to metal and metal alloys including but not limited to stainless steel, titanium, titanium alloys and cobalt chrome; or other suitable materials, including plastic polymers such as polyetheretherketone (PEEK), ultra-high-molecular weight-polyethylene (UHMWP), polyurethanes and composites, including composites containing carbon fiber, natural or synthetic elastomers such as polyisoprene (natural rubber), and synthetic polymers, copolymers, and thermoplastic elastomers, for example, polyurethane elastomers such as polycarbonate-urethane elastomers.

With reference to FIGS. 1 and 39-45, for example, the closure structure or closure top 18 shown with the assembly 1 is rotatably received between the spaced arms 62 of the receiver 10. It is noted that the closure 18 top could be a twist-in or slide-in closure structure. The illustrated closure structure 18 is substantially cylindrical and includes a an outer helically wound guide and advancement structure 182 in the form of a flange that operably joins with the guide and advancement structure 72 disposed on the arms 62 of the receiver 10. The flange form utilized in accordance with certain embodiments of the invention may take a variety of forms, including those described in Applicant's U.S. Pat. No. 6,726,689, which is incorporated herein by reference. Although it is foreseen that the closure structure guide and advancement structure could alternatively be a buttress thread, a square thread, a reverse angle thread or other thread like or non-thread like helically wound advancement structure, for operably guiding under rotation and advancing the closure structure 18 downward between the arms 62 and having such a nature as to resist splaying of the arms 62 when the closure structure 18 is advanced into the channel 64, the flange form illustrated herein as described more fully in Applicant's U.S. Pat. No. 6,726,689 is preferred as the added strength provided by such flange form beneficially cooperates with and counters any reduction in strength caused by the any reduced profile of the receiver 10 that may more advantageously engage longitudinal connecting member components. The illustrated closure structure 18 also includes a top surface 184 with an internal drive 186 in the form of an aperture that is illustrated as a star-shape, such as that sold under the trademark TORX, or may be, for example, a hex drive or other internal drives such as slotted, tri-wing, spanner, two or more apertures of various shapes, and the like. A driving tool 260 (discussed below) sized and shaped for engagement with the internal drive 186 is used for both rotatable engagement and, if needed, disengagement of the closure 18 from the receiver arms 62. It is also foreseen that in some embodiments the closure structure 18 may alternatively include a break-off head designed to allow such a head to break from a base of the closure at a preselected torque, for example, 70 to 140 inch pounds. Such a closure structure would also include a base having an internal drive to be used for closure removal. A base or bottom surface 188 of the closure is planar and further includes an optional point (not shown) and a rim 190 for engagement and penetration into the surface 22 of the rod 21 in certain embodiments of the invention. It is noted that in some embodiments, the closure top bottom surface 188 does not include the point and/or the rim. The closure top 18 further includes a cannulation through bore 191 extending along a central axis thereof, opening at the drive feature 186 and extending through the bottom surfaces thereof. Such a through bore provides a passage through the closure 18 interior for a length of wire (not shown) inserted therein to provide a guide for insertion of the closure top into the receiver arms 62. Alternative closure tops may also be used with the bone anchors, such as screws for use with deformable rods that may include semi-spherical or domed bottom surfaces in lieu of the planar bottom and rim of the closure top 18.

The assembly 1 receiver 10, retainer 12 and compression insert 14 are typically assembled at a factory setting that includes tooling for holding and alignment of the component pieces and manipulating the retainer 12 and the insert 14 with respect to the receiver 10. In some circumstances, the shank 4 is also assembled with the receiver 10, the retainer 12 and the compression insert 14 at the factory. In other instances, it is desirable to first implant the shank 4, followed by addition of the pre-assembled receiver, retainer and compression insert at the insertion point. In this way, the surgeon may advantageously and more easily implant and manipulate the shanks 4, distract or compress the vertebrae with the shanks and work around the shank upper portions or heads without the cooperating receivers being in the way. In other instances, it is desirable for the surgical staff to pre-assemble a shank of a desired size and/or variety (e.g., surface treatment of roughening the upper portion 8 and/or hydroxyapatite on the shank 6), with the receiver, retainer and compression insert. Allowing the surgeon to choose the appropriately sized or treated shank 4 advantageously reduces inventory requirements, thus reducing overall cost and improving logistics and distribution.

Pre-assembly of the receiver 10, retainer 12 and compression insert 14 is shown in FIGS. 21-23. With particular reference to FIG. 21, first the retainer 12 is inserted into the upper receiver opening 66, leading with the outer tiered surface 120 with the top surface 126 facing one arm 62 and the retainer bottom surface 122 facing the opposing arm 62 (shown in phantom). The retainer 12 is then lowered in such sideways manner into the channel 64 and partially into the receiver cavity 61, followed by tilting the retainer 12 as also shown in phantom. Then, the retainer 12 is tilted into a position wherein the central axis of the retainer 12 is generally aligned with the receiver central axis B as shown in solid lines in FIG. 21, with the retainer being compressed at the slit 149 to clear the receiver inner surface 97. The retainer is then lowered further into the receiver as shown in FIG. 22, with the tiered surfaces 120 resting on the receiver stepped seating surfaces 104. At this time, the resilient retainer returns to a neutral state (possibly slightly more contracted than an original nominal state thereof, but such is not a concern as the retainer will be expanded about the shank head 8 in a later step). FIG. 23 nicely illustrates how the retainer 12 lower frusto-conical surface 121 sits below the receiver bottom surface 108, later providing a strong low-profile support for the shank head 8, allowing for desirable greater angulation between the shank 4 and the receiver 10 than if the retainer 12 were completely held above the receiver bottom surface 108. At this time, the retainer 12 is captured in the lower portion of the receiver 10 and cannot be moved upwardly past the receiver expansion chamber upper ceiling 98′ unless a user forces the retainer into a compressed state again. The retainer 12 is free to rotate with respect to the receiver about the axis B.

With further reference to FIGS. 22 and 23, the compression insert 14 is then downloaded into the receiver 10 through the upper opening 66 with the bottom surface 164 facing the receiver arm top surfaces 73 and the insert arm wings 168 located between the opposed receiver arms 62. The insert 14 is then lowered toward the receiver base 60 until the insert 14 arm upper surfaces 165 are adjacent the run-out area below the guide and advancement structure 72 defined in part by the cylindrical surface 92. Thereafter, the insert 14 is rotated about the receiver axis B until the upper arm surfaces 165 are directly below the guide and advancement structure 72 with the wings 168 located in the apertures 77. In some embodiments, the insert arms may need to be compressed slightly during rotation to clear some of the inner surfaces 70 of the receiver arms 62. With particular reference to FIG. 23, after the insert 14 is rotated about the axis B to a desired aligned position with respect to the receiver, the four crimping walls 84 now located on either side of the insert wings 168 are pressed inwardly toward the insert, prohibiting further rotation of the insert about the axis B with respect to the receiver. It is noted that the insert wings are marked with a color strip or other indication illustrated by X's and identified by “xx” in the drawings. The receiver also has markings, identified in the drawings as “x”. When the insert indicator “xx” is above the receiver indicator “x” as shown in FIG. 23, the user knows that the insert 14 is captured within the receiver 10 because of the wings being prohibited from upward movement by the guide and advancement structure 72, but that the insert 14 is otherwise has limited mobility along the axis B. As will be described more fully below, in later stages of assembly, these “xx” and “x” indicators will inform a user whether the insert 14 is in a relatively loose or floppy relationship with the shank 4, a friction fit relationship with the shank 4 wherein the shank is movable with respect to the receiver with some force, or a fully locked position in which the angle of the shank 4 with respect to the receiver 10 is fully locked in place and the bone anchor 1 may be manipulated like a monoaxial screw (but advantageously at an angle of inclination desired by the surgeon).

With further reference to FIG. 23, the retainer 12 and the insert 14 are now in a desired position for shipping as an assembly along with the separate shank 4. The insert 14 is also fully captured within the receiver 10 by the guide and advancement structure 72 prohibiting movement of the insert 14 up and out through the receiver opening 66 as well as by retainer 12 located below the insert. The receiver 10, retainer 12 and insert 14 combination is now pre-assembled and ready for assembly with the shank 4 either at the factory, by surgery staff prior to implantation, or directly upon an implanted shank 4 as will be described herein.

The bone screw shank 4 or an entire assembly 1 made up of the assembled shank 4, receiver 10, retainer 12 and compression insert 14, is screwed into a bone, such as the vertebra 17, by rotation of the shank 4 using a suitable driving tool that operably drives and rotates the shank body 6 by engagement thereof at the internal drive 46. Specifically, the vertebra 17 may be pre-drilled to minimize stressing the bone and have a guide wire (not shown) inserted therein to provide a guide for the placement and angle of the shank 4 with respect to the vertebra. A further tap hole may be made using a tap with the guide wire as a guide. Then, the bone screw shank 4 or the entire assembly 1 is threaded onto the guide wire utilizing the cannulation bore 50 by first threading the wire into the opening at the bottom 28 and then out of the top opening at the drive feature 46. The shank 4 is then driven into the vertebra using the wire as a placement guide. It is foreseen that the shank and other bone screw assembly parts, the rod 21 (also having a central lumen in some embodiments) and the closure top 18 (also with a central bore) can be inserted in a percutaneous or minimally invasive surgical manner, utilizing guide wires and attachable tower tools mating with the receiver. When the shank 4 is driven into the vertebra 17 without the remainder of the assembly 1, the shank 4 may either be driven to a desired final location or may be driven to a location slightly above or proud to provide for ease in assembly with the pre-assembled receiver, compression insert and retainer.

With reference to FIGS. 24-47, when it is desired for the shank 4 to be “popped” on to the assembly shown in FIG. 23 by the surgical staff, the following procedure and tooling may be used: First, with respect to FIG. 24, a torque tube 210 is inserted by hand onto the receiver 10. The torque tube 210 includes a tubular body 211, a receiver mating guide and advancement structure 212 located adjacent a planar annular bottom surface 213, a handle mating surface 215 located near a planar annular top surface 214, and an annular groove 216 located beneath the mating surface 215. In the illustrated embodiment, the mating surface or drive 215 has a star-shape profile that not only mates with a handle 230 described below, but also good for finger tightening the torque tube 210 to the receiver 213 at the guide and advancement structure 72. After the torque tube guide and advancement structure 212 is mated to the receiver guide and advancement structure 72 by rotation of the torque tube 210 into the receiver arms, as shown in FIG. 25, the user then chooses a shank 4 and inserts the shank 4 head 8; into the receiver bottom opening 110 as shown in FIG. 26, all the while holding the torque tube 210 at the shaft 211. With reference to FIGS. 27 and 28, the shank is then “popped” into the receiver by pushing the shank head 8 through the retainer 12 through bore 141. FIG. 27 shows maximum expansion of the retainer 12 with upward movement of the retainer being blocked by the receiver surface 98′. FIG. 28 illustrated full capture of the shank head 8 by the retainer 12. With reference to FIG. 20, it is noted that the insert indicator strip “xx” is still located above the receiver indicator strip “x”, letting the user know that the shank 4 is in an easily movable or floppy relationship with the receiver 10 at this time. It is foreseen that in an embodiment of the invention wherein the insert 14 is modified to remove the interference fit surface 159, a user could finger press such an insert down past the small lip 92′ creating a mild friction fit between the insert 14 and the shank head 8, reducing some of the floppiness between the parts.

With reference to FIGS. 30-36, a member of the surgical staff may now place the insert 14 into a friction fit relationship with the shank head 8 at this time, to result in a non-floppy but movable relationship between the shank 4 and the receiver 10. To do this, the following tools may be used: the torque tube 210, a counter-torque tool 220 and a handle 230. It is noted that other tools may be used to place the insert 14 into an initial friction fit relationship and ultimate locking relationship with the shank head 8 and the receiver 10. For example, a dedicated jig for holding the shank 8 during “pop-on” and later tightening steps may be used. Furthermore, powered drive tools may be provided in lieu of the hand tightening tools illustrated and described herein.

The torque tube 210 has been described above. With reference to FIGS. 30 and 30 a, the counter-torque tool 220 includes a tubular shaft 221 and a handle or holder arm 222 disposed perpendicular to the shaft 220. The tubular shaft 220 terminates at a bottom surface 223 and extending from the bottom surface 223 are a pair of opposed prongs 224 having bottom surfaces 225. The prongs each include curved inner surfaces 226 for sliding mating engagement with outer surfaces of the receiver arms 62. Inwardly facing projections or alignment stops 228 are located on each curved surface 226. The stops 228 are sized, shaped and positioned for being slidingly received into the grooves 74 of the receiver 10, but do not press against the insert 14. With reference to FIGS. 31, 32 and 33, the handle 230 includes a tubular shaft body 231 and an integral upper winged holding portion 232. Formed in a bottom surface 233 of the shank opposite the winged holder 232 is an internal drive aperture or through bore 234 that is also defined by a stop or ledge 235 that in turn is adjacent to an internal drive feature 236 having a star-shape profile that mates with the drive feature 215 of the torque tool 210. Adjacent a top surface 238 but still along the bore 234 is another drive feature 239 that is also star-shaped in profile, but smaller than the drive feature 236. The drive feature 239 is sized and shaped to cooperate with a shank driver 250.

As illustrated in FIGS. 32-35, the surgical staff mounts the counter torque tool 220 over the torque tube 210 with the projections 228 inserted into the grooves 74 until the surface 223 abuts against the receiver top surfaces 73, followed by mating the handle 230 to the torque tube 210, the star profile drive feature 236 sliding down over the torque tube outer feature 215 and the torque tube top surface 214 abutting against the inner ledge 237. Holding the counter torque handle 222, the user twists the torque handle 232, driving the torque tube bottom surface 213 down onto the insert 14 top surfaces 165 as best shown in FIG. 34. The torque tube can only go a limited distance, with the tube body 211 abutting the receiver top arm surfaces 73 when the insert is moved downwardly to a desired position to result in a friction fit, non floppy relationship between the insert 14 and the shank head 8. Specifically, downward movement of the insert 14 this desired amount creates a press fit between the insert outer surfaces 159 and the receiver inner cylindrical surfaces 95, locking the insert 14 against the receiver 10 at the surfaces 159 and 95. Such downward movement of the insert 14 also causes the frusto-conical surface 97 to press against the insert lower collet outer surface 160 located near the insert bottom surface 164, which in turn causes the insert collet inner surface 178 to frictionally engage the shank head spherical surface 34. With respect to FIG. 35, the user then reverses the drive and moves the torque tube 210 up slightly away from the insert 14. At this time, the insert will not move back up unless forced upwardly by tooling (not shown) that engages the insert wings 168 and forces the insert 14 out of the press fit with the receiver 10 at the surfaces 95 and 159. As illustrated in FIG. 36, when the tools are removed, a user knows that the insert 14 is locked to the receiver 10, but is in non-floppy, movable friction fit relationship with the shank as shown by the indicator strip “xx” being aligned with the receiver indicator strip “x”. At this time, the retainer 12 is also still rotatable about the axis B of the receiver, allowing a user to position the slit 149 and concave surfaces 150 at a desired location for future shank articulation with respect to the receiver 10.

With reference to FIG. 37-38, the bone screw assembly 1 may now be driven into a vertebra 17. Now, the torque tube 210 is assembled with a driver 250 and the handle 230 as illustrated in FIG. 37. The driver 250 includes a drive feature 251 adjacent a bottom surface 252. The drive feature 251 is sized and shaped to mate with the drive feature 46 of the shank 4. Adjacent a top surface 253 is a star-shaped profile drive feature 254 sized and shaped to mate with the feature 239 of the handle 230. As shown in FIG. 38, the handle 230 mates with both the torque tube 210 and the driver 250 for driving the shank body 6 into a vertebra 17. Tooling is then removed and eventually a rod 21 and closure top 18 are inserted into the assembly 1 as shown in FIG. 39.

The closure top 18 is driven into the receiver guide and advancement structure 72 using a driver 260 having a drive feature 261 near a bottom surface 262 thereof and having a star-shaped profile drive 264 near a top surface 263. With reference to FIGS. 40 and 41, the counter-torque tool 220 is again mounted onto the receiver 10. This time, the closure top driver 260 is inserted into the counter-torque tube 221 and a drive handle 230′ is mounted on the closure top driver 260. The drive handle 230′ is substantially similar to the handle 230 previously described herein, having a drive feature 239′ for mating with the closure top driver upper drive feature 264. With reference to FIGS. 42 and 43, as the closure top drive 260 is rotated, the closure top 18 guide and advancement structure 182 is fully mated with the receiver guide and advancement structure 72 causing downward movement of the closure top 18 onto the rod 21, the rod in turn pressing downwardly on the insert 14, pressing the insert deeper into the receiver 10, locking the insert 14 against the shank head 8 which is no longer pivotable with respect to the receiver 10. As shown in FIG. 43, a user knows that the entire polyaxial mechanism of the assembly 1 is fully locked because the indicator strip “xx” is now located below the receiver indicator strip “x”.

FIG. 44 is another illustration of a fully locked up bone screw assembly 1 according to an embodiment of the invention. When the insert 14 compresses against the shank head 8, the head 8 presses against the retainer 12, pressing the retainer 12 outwardly against the receiver 10, with the tiered surfaces 120 pressing against and also fully seated downwardly against the receiver stepped surfaces 104. Edges 148 and 148′ dig into the shank spherical surface 34. It is foreseen that the retainer 12 may be formed to create additional edge surfaces for frictionally engaging the shank head 8.

If the surgeon wishes to further manipulate the rod for distraction, compression, or other reasons, the closure top 18 may be loosened as shown in FIG. 45. However, at this time, the receiver cannot be tilted or otherwise angularly manipulated with respect to the shank 4. The assembly 1 advantageously performs like a strong, mono-axial screw, regardless of the orientation of the shank 4 with respect to the receiver 10.

With reference to FIG. 46, the assembly 1 is illustrated in a friction, fit, but unlocked position in which the shank 4 is disposed at an angle with respect to the receiver 10. FIG. 47 illustrates using the same tooling as shown in FIGS. 40-42 to lock up the assembly of FIG. 46 in this desired angular orientation.

FIGS. 49-55 illustrated an “in vivo” method of driving a bone screw shank 4 into a vertebra 17, followed by “popping” on a receiver, retainer, insert assembly, followed by locking the resulting assembly 1 into a desired position with a rod 21 and closure top 18. Specifically, FIGS. 48 and 49 show using a driver 250 and cooperating handle 230 to drive the shank 6 into a vertebra 17. With respect to FIGS. 50 and 51, a receiver 10, retainer 12, insert 14 and torque tube 210 assembled as previously described herein with respect to FIGS. 21-36 are mounted on the already implanted shank head 8. With reference to FIGS. 52 and 53, the insert 14 may be placed into a non-floppy friction fit with the shank head 8 either before or after any desired articulation or pivoting of the shank 4 with respect to the receiver 10, the same tools: torque tube 210, counter-torque tube 220 and handle 230 being used as previously described herein. Then, a rod and closure top 18 may be inserted as shown in FIG. 54, followed by lock up using the driver 260 and other tools shown in FIG. 55. A resulting assembly shown in FIG. 56 shows an increased angle of articulation of about thirty degrees possible when the shank 4 is pivoted into the cut-out portion 150 of the retainer 12. FIG. 57 illustrates a shank to receiver angle of about eighteen degrees when the shank 4 is pivoted in a direction away from the cut-out 150.

FIGS. 58 and 59 illustrate the use of an alternative favored angle receiver 10′ with the other components of the assembly 1 shown in FIG. 1, resulting in a bone screw assembly 1′. The receiver 10′ is identical to the receiver 10 with the exception that the receiver 10′ further includes opposed cut-outs at the bottom surface 108, providing concave surfaces 109′ for receiving some of the shank 4, resulting in angles of inclination between the shank 4 and receiver 10′ of up to about forty degrees.

With reference to FIGS. 60-71, polyaxial bone screw assemblies 1 and 1′ according to embodiments of the invention may be used with longitudinal connecting member assemblies that are sometimes called “soft” or “dynamic” connectors that may include one or more sleeves, generally 304, shown in FIG. 60, having varied lengths of tubular extensions on one or both sides thereof and further cooperating with an inner tensioned cord 306, one or more bumpers 314, one or more spacers 316, and in connectors that may include one or more end blockers 310 or fixers for fixing the cord to the connector assembly without fixing the cord directly to a bone anchor. A variety of such connector components are described in Applicants' U.S. patent application Ser. No. 12/802,849 filed Jun. 15, 2010 (U.S. Publication No. 2010/0331887) and incorporated by reference herein. With reference to FIG. 60, the four difference sleeves, generally 304 are shown, each sleeve differing only with respect to tubular extension lengths at one or both ends thereof. For example, a sleeve 304A includes one short tubular extension at one end thereof; a sleeve 304B includes opposed short tubular extensions; a sleeve 304C includes one longer tubular extension at one end thereof; and a sleeve 304D includes opposed longer tubular extensions at both ends thereof. The sleeve 304A is also illustrated in greater detail in FIGS. 66-70, for example. The sleeve 304B is shown assembled with the bone screw assembly 1 in FIGS. 61 and 62, for example. The cord 306, is shown, for example, in FIGS. 61 and 69 and in phantom in FIGS. 66 and 68, for example. The bumper 314 is shown, for example in FIGS. 66, 68 and 69. The spacer 316 is shown in FIGS. 63-66, 68, 69 and 71.

Specifically, the hard sleeve 304A is being described herein, noting that all of the sleeves 304 have the same or similar features and only differ with respect to the tubular extensions. The sleeve 304A includes a body portion 334 generally sized and shaped for being received within the polyaxial bone screw 1 receiver 10 and about a cord 306. A through bore 336 extends centrally through the body portion 334, the bore 336 being sized and shaped to slidingly receive the cord 306. At either side of the body portion 334 are a pair of opposed spaced partially radially extending flanges 338. The flanges 338 having upper and lower planar surfaces. The upper planar surfaces 339 may be in contact with a lip of the spacer 316 as will be described in more detail below. The body portion 334 further includes an annular planar top surface 340, a substantially cylindrical bottom surface, and opposed planar surfaces adjacent the bottom surface, as well as opposed partially cylindrical or otherwise protruding portions 344 located adjacent the planar surface 340 and extending centrally outwardly therefrom for cooperating and engaging both the bone screw insert 14 and a closure top, such as the closure top 18 shown in FIG. 67, for example, as will be described in more detail below. Thus, the top annular surface 340 partially defines each of the protruding portions 344. The body 334 is sized and shaped to closely fit within inner arm surfaces of the insert 14 and the bone screw receiver 10. The portions 344 function to center the sleeve 304 within the insert 14 and thus within the bone screw receiver 10 and also advantageously strengthen the sleeve, resulting in better load transfer. It is foreseen that in some embodiments, the flanges 338 may be reduced or eliminated as the centering of the sleeve with respect to the bone screw receiver 10 may be performed by the portion or portions 344.

In the illustrated embodiment of FIGS. 60 and 70, each flange 338 has a pair of opposed cylindrical outer surface portions 346, the planar top surfaces 339 and planar bottom surfaces 347. The sleeve 304A further includes one outer planar annular surface 348 that is sized and shaped for directly abutting against a bumper or a spacer, as shown in FIG. 69, for example. The bore 336 extends through the planar surface 348. At an opposite end thereof, the sleeve 304A includes a tubular extension 349. Variously curved transition surfaces may be included that curve towards the flanges. The top planar surface 339 of one of the flanges also extends along the tubular extension 349 with the bore 336 extending all the way through the extension 349.

The body 334 substantially cylindrical lower surface is sized and shaped to be closely received by the insert saddle surface 174 when the insert is seated in the receiver 10. Near the top body surface 340 and also adjacent each of the flanges 338 are inwardly facing curved or radiused surfaces 356, sized and shaped to provide clearance for receiving the closure top 18 or an alternative closure top 18′ shown in FIG. 62. It is noted that the body portion 334 as well as the inner surfaces of the flanges may be sized and shaped to be receivable by and frictionally fixed to a variety of monoaxial or polyaxial screw heads or receivers, including, but not limited to, the receiver 10.

With particular reference to FIGS. 60 and 68, a bore 360 is formed in the body 334 at the top surface 340 and located centrally between the flanges 338. The bore 360 is transverse to and communicates with the through bore 336. The bore 360 is sized and shaped to receive a cord penetrating extension 317 of the closure top 18′ therein as best shown in FIG. 62. In FIG. 68, the sleeve 304 is shown with the closure top 18, for example, showing that the top 18 does not extend down into the through bore 360, allowing for the cord 306 to slide freely within the bore 336.

With reference to FIGS. 63-69, the sleeve 304A is shown assembled with the bone screw 1 and with the extension 349 being received in through a bore of the tubular spacer 316. FIG. 63 shows a spacer 316 located on either side of the bone screw 1, while FIGS. 66, 68 and 69 show the sleeve 304A cooperating with the sleeve 316 at one side thereof and a bumper 314 at an opposed side thereof. Both the sleeve and spacers surround a cord 306.

The spacer 316, also shown in FIGS. 64 and 65, includes a tubular body portion 365 that is somewhat ovoid in profile, having a through bore 366 located near an upper portion of the body 365, with a portion of the bore 366 being defined by an upper strip or box-like portion 367 defined by planar surfaces and having a top groove 368. The illustrated lower body 365 also includes one or more grooves. The upper polygonal portion 367 is sized and shaped to abut up against front or rear planar outer surfaces of the arms 62 of the receiver 10 located near top surfaces of the receiver 10, while the lower body portion 365 abuts against the receiver base 60 planar surface 59. The bore 366 is centrally located between curved sides of the body portion 365 that are adjacent the upper portion 367. A bottom curved surface 369, however, is spaced further from the bore 366 than are the side surfaces, resulting in a thicker spacer portion or wall near the bottom surface 369 than at the side surfaces located near the upper portion 367. The body portion 365 further includes opposed, planar, parallel front 371 and rear 372 outer surfaces. The top portion 367 also includes opposed planar, parallel front 373 and rear 374 outer surfaces that hang or project over the respective surfaces 371 and 372. In the illustrated embodiment, a jig is required to aid in cutting the spacer 316 to result in the overhanging feature of the top portion 367 that is illustrated on both ends of the spacer 316. For example, after measurements are made, a user would cut the spacer 316 to a desired length using such a jig to cut the surfaces 372 and 374 located opposite the groove 368, to result in the surface 374 extending out over the surface 372 as shown in the drawing figures.

Returning to FIG. 61, the bone screw 1 is illustrated assembled with the hard, inelastic, flanged sleeve 304B, sized and shaped for receiving the tensioned cord 306, the sleeve and the cord may be a part of such a longitudinal connector assembly or system as described in U.S. patent application Ser. No. 12/802,849. There is further illustrated at FIGS. 62-69 the cooperating end cord blocker or fixer 310 with the cord fixing set screw 312, shown with a break-off head 312A, the elastic end bumper 314 and spacers 316 that may be elastic or inelastic. As stated above, the spacers 316 may be cut to a desired length on the end opposite the groove 368. The cord blocker 310, the bumper 314 and spacer 316 are each located about the cord 306, typically with spacers 316 being disposed between each pair of bone anchors 1 of an overall assembly (not shown) that includes at least two bone anchors, such as the anchors 1, but may include any number of bone anchors with the cord 306 at least fixed at either end, either at a terminal or end bone anchor or at an end blocker 310 or other fixing member that may be, for example, a cord to hard rod coupler. The tubular bumper 314 and spacers 316 shown in the figures are transparent, allowing for viewing of the sleeves 304. However, it is foreseen that in other embodiments, the bumper and spacers may be made of materials that may not be transparent or translucent.

Also as shown in FIGS. 62 and 67, for example, at least two types of bone screw closures are utilized, either a slide or slipping closure top 18 previously described herein with respect to the assembly 1 or a cord gripping closure top 18′. The closure top 18 only differs from the top 18 in that the top 18′ does not include a bottom rim or bottom point, but rather a cord fixing or penetrating extension 317 illustrated in FIG. 62 as having a bottom point or pin 318 for piercing into the cord 306. The slide or slip closure top 18 engages a respective sleeve 304 but not the cord 306, allowing the cord to slip or slide within the polyaxial screw 1. The grip closure top 18′ extends through the sleeve 304 at the bore 360 and the portions 317, and in some embodiments 318, fix the cord 306 against an inner surface defining the bore 336 of the sleeve 304 and thus fixes the cord 306 in relation to the polyaxial screw 1 that is mated with the closure top 18′.

As shown in the drawings, the sleeve 304 (as well as the cord blocker 310) may include tubular extensions at one or either side thereof that may be sized and shaped to extend into the inner lumen or bore of the spacers 316 or the bumper 314. Such spacer overlap with respect to the sleeves is desired to provide additional anti-shear support for a connecting member. The illustrated sleeves also include cannulation bores 360A, useful for a variety of non-invasive surgical techniques. The bumper 314 also extends about the cord 306 and is typically made from an elastomer while the outer spacers 316, although typically elastomeric, may be made from a material with a different durometer, typically (but not always) being tougher and less compressible than the material of the bumper 314. The sleeves 304 and in some embodiments the spacers 316 are typically made from a hard, non-elastic material, such as a metal or metal alloy, like cobalt chromium. Flanged portions of the sleeves 304 are located on either side of the bone screw receivers 10, the flanges abutting directly against the spacers 316 or the bumper 314, the flanges extending radially outwardly to an extent to fully engage ends of adjacent spacers or the bumper, resulting in a stable, secure, substantially full contact between the individual elements of a connector assembly. Furthermore, in some embodiments, the flanges allow for assembly and dynamic setting of a longitudinal connector prior to implantation of the connector, if desired, with the cord 306 being placed in tension and at least the bumper 314 being placed in compression. In some embodiments of the invention, tensioning of the cord 316 and compression of the bumper 314 and optionally the spacers 316 may be performed after the longitudinal connector assembly sleeves 304 are attached to the bone screws 1.

The sleeves 304, as well as the cord blocker 310 with set screw 312 may be made from a variety of inelastic materials, including, but not limited to metals, metal alloys, including cobalt chromium, and inelastic plastics including, but not limited to plastic polymers such as polyetheretherketone (PEEK), ultra-high-molecular weight-polyethylene (UHMWP), polyurethanes and composites, including composites containing carbon fiber and layers of different materials.

Longitudinal connecting member embodiments of the invention may be assembled in a manner described in greater detail in U.S. patent application Ser. No. 12/802,849 incorporated by reference herein. It is noted that the cord 306 is typically much longer than shown in the drawing figures and then cut to length near an end thereof after being fully assembled with the remaining elements of the connector assembly, tensioned and fixed to the blocker 310. In some embodiments of the invention, single blockers, bumper/blocker combinations or rod/cord couplers (or various different combinations thereof) may be placed on either end of the assembly and the cord pre-tensioned before the assembly is implanted in and between the already implanted bone screws 1. In other embodiments, a loosely assembled connector may be placed in contact with and between the implanted bone screws 1, with the set screw 312 engaged with the cord 306 enough to prevent the elements from slipping off one end of the cord 306. However, in such an assembly, the cord 306 would not yet be tensioned and thus the individual elements would be spread apart along the cord and the cord would have to be of a length so that the cord could be grasped and tensioned after the assembly is fixed to the bone screws 1. A connector member assembly is then implanted by inserting each sleeve 304 into one of the bone screws 1. The sleeve 304 is top loaded through the receiver top opening with the flanges 338 located outside the receiver channel 64, the sleeve 304 being lowered until the body 334 is seated on the insert 14 with the sleeve protrusions 344 received by and engaging the insert arms.

Closure tops 18 or 18″ are then inserted into and advanced between the arms of the bone screw receiver 10 so as to bias or push against the respective sleeves 304. A driving tool (not shown) is inserted into each closure drive to rotate and drive the respective closure top 18 or 18″ into the respective receiver 10, the lower surface of the closure top engaging and pressing downwardly upon the top body surface 340 of the sleeve 304. As shown in FIG. 67, when the closure top 18 is used, the bottom rim 190 digs into the top body surface 340 but the closure does not engage the cord 306 located within the sleeve bore 336. As shown in FIGS. 67 and 68, downward movement of the closure top 18 or 18″ onto the sleeve 304 in turn presses the sleeve 304 into engagement with the insert 14 that in turn presses downwardly on the shank head 8, locking the head 8 between the insert 14 and the retainer 12, the retainer 12 pressing outwardly against the receiver 10. Because the insert 14 is a lock and release insert, the insert 14 is now wedged against the receiver at the surface 95 and the polyaxial mechanism of the bone screw assembly 1 is now locked, even if the closure top 18 or 18″ is loosened and rotated away from the sleeve surface 340.

A tensioning tool (not shown) known in the art may then be used to pull upon and put tension on the cord 306. It is noted that if more than one gripping closure tops 18′ are used at either end of a connector, one top would be locked initially and then the other or others would be locked after tensioning, or alternatively, more than one tensioning step is performed. Preferably a bumper 314 and end blocker 310 are used at at least one end, and the cord 306 is preferably tensioned until the bumper 314 compresses and then the set screw 312 is rotated and driven into the blocker 310 and up against the cord 306 using a driving tool (not shown) engaged with the illustrated set screw break-off head 312A that breaks off of the screw 312 when a desired force is reached. Other embodiments of the invention may include screws 312 that do not have a break-off head. With reference to FIG. 66, the blocker 310 advantageously includes opposed grooves (or planar sides in some embodiments) allowing for the placement of a counter-torque tool for holding the blocker during tensioning and fixing of the cord 306 within the blocker. As explained in U.S. patente application Ser. No. 12/802,849, the set screw 312 and blocker 310 combination preferably includes a limited travel feature such that the set screw is locked into place at a location that firmly holds but does not damage the cord 306. The cord 306 is ultimately trimmed to a desired length close to each end of the connector.

The connector assembly is thus substantially dynamically loaded and oriented relative to the cooperating vertebra, providing relief (e.g., shock absorption) and protected movement with respect to flexion, extension, distraction and compressive forces placed on the assembly and the connected bone screws 1. In some embodiments of a connecting member according to the invention, a sleeve and rod combination may be used at one end (or both ends) of the assembly to provide a hard, non-elastic elongate portion for attachment to an additional bone screw or screws, if needed, to provide a connecting member with both dynamic, elastic segments as well as a longer rigid inelastic segment.

Eventually, if the spine requires more rigid support, such a connecting member assembly may be removed and replaced with another longitudinal connecting member, such as a solid rod or bar, having the same width or diameter as body portions of the sleeves 304, utilizing the same receivers 10 and the same or similar closure structures 18. Alternatively, if less support is eventually required, a less rigid, more flexible assembly, for example, an assembly having spacers 316 and a bumper or bumpers 314 made of a softer more compressible material than the spacer and bumper being replaced thereby, also utilizing the same bone screws 1 and the closures 18′ as well as the closure 18.

FIG. 70 illustrates a portion of the bone screw assembly 1 of an embodiment of the invention prior to assembly with the shank 4 that further includes the sleeve 304A. The receiver 10 is attached to the torque tube 210 and thus the assembly portion is ready for “popping” onto a shank head 8, either before or after the shank is implanted into bone. FIG. 71 illustrates utilizing two bone screw assembly portions as shown in FIG. 70 equipped with sleeves 304A and having a cord 306 and spacer 316 already mounted therebetween prior to mounting on a pair of previously implanted shanks 4.

FIGS. 72 and 73 illustrate an alternative insert 14″ according to an embodiment of the invention. The insert 14″ is substantially identical in form and function to the insert 14 previously described herein with the exception that the insert 14″ has been made with a wider interference fit surface 159″ and thicker, stronger insert arms. The receiver 10″ has also been modified to cooperate with this thicker, stronger insert 14″.

With reference to FIGS. 74-94, the reference number 1001 generally represents an alternative, uni-planar bone screw apparatus or assembly according to an embodiment of the invention. The assembly 1001 includes a shank 1004; a receiver 1010; an open tiered retainer 1012, a locking friction fit pressure insert 1014. There are many similarities between the assembly 1001 and the assembly 1. Differences between the embodiments 1 and 1001 mainly concern the shank 1004 and the retainer 1012. The receiver 1010 only differs from the receiver 10 in that the receiver 1010 includes an inwardly extending projection 1105 for holding the retainer 1012 in a desired position within the receiver, blocking any rotation of the retainer 1012 with respect to the receiver 1010. The friction fit insert 1014 is identical to the insert 14.

With particular reference to FIGS. 75-80, the uni-planar shank 1004 includes a body 1006, a substantially spherical head 1008 with an outer spherical surface 1034 that are substantially similar to the shank body 6 and head 8 previously described herein. Rather than the frusto-conical surface 39, the head 1008 has a planar annular top surface 1039. Formed in the spherical surface 1034 are opposed key portions, generally 1041 that include flat planar surfaces 1042 and a lower key extension or strip 1043 directed towards the shank body 1006. The flat surface 1042 extends downwardly along the extension 1043. Side surfaces 1044 extend between the flat surfaces 1042 and the shank spherical head 1034 and shank neck 1026. Indicator strips located on the shank neck 1026 include opposed pairs of wide strips 1048 narrow strips 1049 that allow a user to properly align and “pop” the uni-planar shank 1004 into the retainer 1012.

With reference to FIGS. 81-86, the uni-planar retainer 1012 includes all the features of the retainer 12 previously described herein and further includes inner key cut-outs generally 1154 as well as outer planar surface cuts 1152′ and 1153′ for cooperating with the alignment feature or projection 1105 of the receiver 1010. The inner key cut-outs 1154 are further defined by opposed flat surfaces 1155, curved surfaces 156 and curved surfaces 157 on either side of the flat 1155, the surfaces 1156 and 1157 forming a goblet-like shape for supporting the uni-planar pivoting of the shank key surfaces 1044. Small curved apertures 1158 are cut into the flat surface 1155 at the retainer top surface 1126.

With reference to FIGS. 87 and 88, the retainer 1012 is loaded into the receiver 1010 in a manner similar to that described previously herein with respect to the retainer 12 and receiver 10. However, when the retainer 1012 is tilted as shown in FIG. 88, the retainer slit surfaces 1152 and 1153 must be located on either side of the receiver inner projection 1105. FIG. 89 illustrates the “popping” on of the uni-planar shank to the now mounted uni-planar retainer. With reference to both FIGS. 88 and 89, the shank must be positioned such that the shank flat surfaces 1042 slide up along the retainer flat surfaces 1155. With reference to FIG. 91, once the shank head 1008 passes through the retainer 1012 and is captured thereby, the key side surfaces 1044 are slidable along the retainer surfaces 1156, allowing for articulation of the shank 1004 with respect to the receiver 1010 in only one plane. Due to the location of the receiver projection 1105, the single plane of articulation is in direct alignment with the length of the rod 1021, shown for example, in FIG. 90. All of the other implantation and shank manipulation, friction fit and locking steps previously described herein with respect to the assembly 1 also apply to the assembly 1001. FIGS. 92-94 further illustrate the possible degrees of angular orientation between the uni-planar shank 1004 and retainer 1012. Thus, the “pop-on” uni-planar shank 1004 cooperates with the locking, friction fit insert 1014 and other components of the assembly 1001 shown in FIGS. 92-94, to provide for advantageous pre- or in-vivo shank assembly, friction fit or non-friction fit manipulation of the shank with respect to the receiver and final lock up utilizing the same tools and the same manipulation steps as previously described herein with respect to the assembly 1.

It is to be understood that while certain forms of the present invention have been illustrated and described herein, it is not to be limited to the specific forms or arrangement of parts described and shown.

Claims (19)

What is claimed and desired to be secured by Letters Patent is as follows:
1. A medical implant assembly for securing an elongate rod to a bone, the medical implant assembly comprising:
a shank with a lower body portion for fixation to the bone and an integral upper portion having a top radiused surface above a hemisphere thereof and a capture structure thereon;
a receiver having a base and a pair of upright arms extending upward from the base with opposed interior surfaces that define an open channel for receiving the elongate rod, the arm interior surfaces having a closure top mating feature formed thereon, the base defining a chamber in communication with the open channel and having an upper capture region, a lower locking region, and a lower opening in communication with a bottom surface of the receiver, the receiver including an interference engagement surface between the lower opening and the closure top mating feature;
an insert positioned within the receiver prior to the shank and configured to engage the elongate rod when the elongate rod is received within the open channel, the insert being positioned in the receiver entirely above the receiver chamber upper capture region and initially being prevented from moving downwardly within the receiver by the interference engagement surface, the insert having a central opening:
a retainer positioned in the receiver chamber prior to the shank, the retainer capturing the shank upper portion capture structure within the receiver chamber upper capture region when the shank is uploaded through the receiver lower opening,
wherein after the shank upper portion is captured by the retainer, the insert is forced downwardly within the receiver by a tool into engagement with the interference engagement surface so as to prevent the insert from moving back up within the receiver, and
wherein the shank has pivotal motion in only one plane with respect to the receiver prior to locking of the medical implant assembly.
2. The medical implant assembly of claim 1, wherein the retainer is is non-pivoting with respect to the receiver after capturing the shank.
3. The medical implant assembly of claim 1, wherein the retainer is configured to widen within the receiver chamber upper capture region and then close back around the shank upper portion capture structure as the shank is uploaded through the receiver lower opening.
4. The medical implant assembly of claim 1, wherein the insert is pushed downwardly within the receiver by direct engagement with a first tool and pulled back up with a second tool.
5. The medical implant assembly of claim 1, wherein the insert is spaced from the retainer.
6. The medical implant assembly of claim 1, wherein the receiver has an internal frusto-conical surface above the lower opening so as to create a temporary friction fit between the receiver and the shank prior to locking of the medical implant assembly.
7. The medical implant assembly of claim 1, wherein the receiver chamber upper capture region further includes a downwardly facing surface that engages a top surface of the retainer to hold the retainer in the upper capture region while the shank is uploaded through the receiver lower opening.
8. The medical implant assembly of claim 1, wherein the shank upper portion capture structure further includes at least one outwardly facing planar surface that slidably engages at least one inwardly facing planar surface formed into an inner surface of the retainer to limit the motion of the shank to pivotal motion in the only one plane.
9. The medical implant assembly of claim 1,
wherein the shank upper portion capture structure further comprises a pair of opposed outer planar surfaces oriented in spaced parallel relation, and
wherein the retainer further comprises a pair of opposed inner cut-outs with inward facing planar surfaces sized and shaped for receiving the pair of opposed outer planar surfaces in sliding relation to limit pivotable motion of the shank to one plane thereafter with respect to the receiver.
10. A bone anchor assembly for securing an elongate rod to a bone, the bone anchor assembly comprising:
a shank having a body for fixation to a bone and an integral upper capture portion having a partial spherical shape;
a receiver having a top portion and a base, the receiver top portion defining an open channel for receiving the elongate rod with upwardly extending arms including a structure for mating with a closure top, the base defining a cavity in communication with the open channel and having a lower opening communicating with a bottom surface of the base, the cavity including an upper capture region and a lower locking region, the receiver including an interference wedging surface between the lower opening and the closure;
an insert disposed within the receiver prior to the shank upper capture portion and after positioning prevented from moving downwardly by the interference wedging surface; and
a retainer disposed in the receiver cavity prior to the shank upper capture portion and configured to widen within the receiver cavity upper capture region when the shank upper capture portion is uploaded through the receiver lower opening and then close back around the shank upper capture portion to capture the shank within the receiver, the retainer being displaceable into the lower retainer locking region of the cavity after capturing the shank upper capture portion,
wherein after the shank upper portion is captured by the retainer, the insert is downwardly displaceable with a tool into a frictional engagement against the receiver interference wedging surface so as to prevent the insert from moving back up within the receiver, and
wherein the shank has pivotable motion limited to only one plane thereafter with respect to the receiver.
11. A bone anchor assembly for securing an elongate rod to a bone, the bone anchor assembly comprising:
a shank having a body for fixation to a bone and an integral upper capture portion;
a receiver having a top portion and a base with a lower opening, the receiver top portion defining an open channel for receiving the elongate rod, the base defining a cavity, the open channel communicating with the cavity to define a central bore, the cavity having an upper capture region and a lower locking region and communicating with a bottom surface of the base through the lower opening, the central bore including an inwardly facing interference wedging surface;
a retainer disposed within the cavity before the shank is bottom loaded into the receiver through the lower opening, the retainer being able to separate so as to capture the shank upper capture portion within the receiver cavity upper capture region when the shank is uploaded through the receiver lower opening, the retainer thereafter being displaceable downwardly toward the receiver cavity lower locking region; and
an insert positioned in the receiver open channel and above the cavity upper capture region, the insert being prevented from moving downwardly toward the cavity by engagement with the receiver structure,
wherein after the shank is captured by the retainer, the insert is downwardly displaceable by directed engagement with a tool into frictional engagement with the central bore inwardly facing interference wedging surface so as to prevent the insert from moving back up within the receiver prior to locking of the bone anchor assembly with a closure, and
wherein the retainer is configured to cooperate with the shank to limit pivotal motion of the shank with respect to the receiver to a single plane.
12. The bone anchor assembly of claim 11,
wherein the shank upper capture portion further comprises a pair of opposed outer planar surfaces oriented in spaced parallel relation, and
wherein the retainer further comprises a pair of opposed inner cut-outs with inward facing planar surfaces sized and shaped for receiving the pair of opposed outer planar surfaces in sliding relation to limit the pivotable motion of the shank with respect to the receiver.
13. A medical implant assembly for securing an elongate rod to a bone, the medical implant assembly comprising:
a shank with a lower body for fixation to a bone and an integral upper portion having an outer convex substantially spherical surface;
a receiver having a base and a pair of upright arms extending upward from the base with inner surfaces defining an open channel for receiving the elongate rod, the arm inner surfaces having a closure top guide and advancement feature formed thereon, the base defining a chamber having an upper capture portion, a lower locking portion, and communicating with a receiver bottom surface through a lower opening, the open channel communicating with the chamber, the receiver having a central axis and a contact portion between the lower opening and the open channel and facing inwardly toward the central axis;
a retainer positioned within the chamber before the shank is bottom loaded into the receiver through the lower opening, the retainer having a through-and-through gap extending from a top surface to a bottom surface of the retainer; and
a lower pressure insert positioned within the receiver before the shank is bottom loaded into the receiver and engageable with the receiver inwardly-facing contact portion to prevent the insert from moving downwardly toward the chamber prior to the shank being capture by the retainer,
wherein after the shank upper portion is bottom loaded into the receiver through the lower opening and captured by the retainer, the insert is forced downward toward the lower locking portion with a tool into an interference engagement with the receiver inwardly-facing contact portion that prevents the lower pressure insert from moving back up within the receiver, and
wherein the wherein the insert and retainer cooperate with the receiver to limit pivotal motion of the shank with respect to the receiver to a single plane.
14. The medical implant assembly of claim 13, wherein the retainer is downwardly deployed into a fixed non-pivoting position within the chamber lower locking portion after capturing the shank upper portion.
15. The medical implant assembly of claim 13, wherein a bottom surface of the insert is spaced from the top surface of the retainer.
16. The medical implant assembly of claim 13, wherein a bottom surface of the insert engages the shank upper portion extending above the top surface of the retainer after the shank is capture within the receiver.
17. The medical implant assembly of claim 13, wherein the receiver chamber upper capture portion further includes a downwardly facing surface that engages the top surface of the retainer to hold the retainer in the upper capture portion while the shank is uploaded through the receiver lower opening.
18. The medical implant assembly of claim 13, wherein the shank is cannulated.
19. The medical implant assembly of claim 13,
wherein the shank upper portion further comprises a pair of opposed outer planar surfaces oriented in spaced parallel relation, and
wherein the retainer further comprises a pair of opposed inner cut-outs with inward facing planar surfaces sized and shaped for receiving the pair of opposed outer planar surfaces in sliding relation to limit the pivotable motion of the shank with respect to the receiver.
US13573516 2006-01-09 2012-09-19 Polyaxial bone anchor with pop-on shank and winged insert with friction fit compressive collet Active US9918745B2 (en)

Priority Applications (29)

Application Number Priority Date Filing Date Title
US26870809 true 2009-06-15 2009-06-15
US27075409 true 2009-07-13 2009-07-13
US27824009 true 2009-10-05 2009-10-05
US33691110 true 2010-01-28 2010-01-28
US34373710 true 2010-05-03 2010-05-03
US39556410 true 2010-05-14 2010-05-14
US39575210 true 2010-05-17 2010-05-17
US39639010 true 2010-05-26 2010-05-26
US12802849 US20100331887A1 (en) 2006-01-09 2010-06-15 Longitudinal connecting member with sleeved tensioned cords
US39880710 true 2010-07-01 2010-07-01
US40050410 true 2010-07-28 2010-07-28
US40295910 true 2010-09-08 2010-09-08
US40369610 true 2010-09-20 2010-09-20
US40391510 true 2010-09-23 2010-09-23
US12924802 US8556938B2 (en) 2009-06-15 2010-10-05 Polyaxial bone anchor with non-pivotable retainer and pop-on shank, some with friction fit
US45664910 true 2010-11-10 2010-11-10
US201061460267 true 2010-12-29 2010-12-29
US201061460234 true 2010-12-29 2010-12-29
US201161463037 true 2011-02-11 2011-02-11
US201161517088 true 2011-04-13 2011-04-13
US13136331 US20120029568A1 (en) 2006-01-09 2011-07-28 Spinal connecting members with radiused rigid sleeves and tensioned cords
US201161573508 true 2011-09-07 2011-09-07
US201161626250 true 2011-09-23 2011-09-23
US13373289 US9907574B2 (en) 2009-06-15 2011-11-09 Polyaxial bone anchors with pop-on shank, friction fit fully restrained retainer, insert and tool receiving features
US13374439 US9980753B2 (en) 2009-06-15 2011-12-29 pivotal anchor with snap-in-place insert having rotation blocking extensions
US13385212 US9216041B2 (en) 2009-06-15 2012-02-08 Spinal connecting members with tensioned cords and rigid sleeves for engaging compression inserts
US13506365 US8444681B2 (en) 2009-06-15 2012-04-13 Polyaxial bone anchor with pop-on shank, friction fit retainer and winged insert
US13573303 US9393047B2 (en) 2009-06-15 2012-09-07 Polyaxial bone anchor with pop-on shank and friction fit retainer with low profile edge lock
US13573516 US9918745B2 (en) 2009-06-15 2012-09-19 Polyaxial bone anchor with pop-on shank and winged insert with friction fit compressive collet

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US13573516 US9918745B2 (en) 2009-06-15 2012-09-19 Polyaxial bone anchor with pop-on shank and winged insert with friction fit compressive collet
US13573874 US9480517B2 (en) 2009-06-15 2012-10-10 Polyaxial bone anchor with pop-on shank, shank, friction fit retainer, winged insert and low profile edge lock
US13694110 US9168069B2 (en) 2009-06-15 2012-10-26 Polyaxial bone anchor with pop-on shank and winged insert with lower skirt for engaging a friction fit retainer
US13694332 US20130103098A1 (en) 2009-06-15 2012-11-20 Polyaxial bone anchor with pop-on shank, friction fit retainer and lateral alignment feature
US13966748 US20140018863A1 (en) 2009-06-15 2013-08-14 Polyaxial bone anchor with pop-on shank, friction fit retainer, winged insert and low profile edge lock
US14674517 US9522021B2 (en) 2004-11-23 2015-03-31 Polyaxial bone anchor with retainer with notch for mono-axial motion
US15338817 US9883892B2 (en) 2009-06-15 2016-10-31 Polyaxial bone anchor with pop-on shank, friction fit retainer, winged insert and low profile edge lock
US15878542 US20180153589A1 (en) 2009-06-15 2018-01-24 Bottom-loaded pivotal bone anchor assembly with non-pivoting retainer and deployable insert

Related Parent Applications (9)

Application Number Title Priority Date Filing Date
US12802849 Continuation-In-Part US20100331887A1 (en) 2001-05-09 2010-06-15 Longitudinal connecting member with sleeved tensioned cords
US13136331 Continuation-In-Part US20120029568A1 (en) 2001-05-09 2011-07-28 Spinal connecting members with radiused rigid sleeves and tensioned cords
US13373289 Continuation-In-Part US9907574B2 (en) 2006-01-09 2011-11-09 Polyaxial bone anchors with pop-on shank, friction fit fully restrained retainer, insert and tool receiving features
US13374439 Continuation-In-Part US9980753B2 (en) 2006-01-09 2011-12-29 pivotal anchor with snap-in-place insert having rotation blocking extensions
US13385212 Continuation-In-Part US9216041B2 (en) 2006-01-09 2012-02-08 Spinal connecting members with tensioned cords and rigid sleeves for engaging compression inserts
US13506365 Continuation-In-Part US8444681B2 (en) 2006-01-09 2012-04-13 Polyaxial bone anchor with pop-on shank, friction fit retainer and winged insert
US13573303 Continuation-In-Part US9393047B2 (en) 2006-01-09 2012-09-07 Polyaxial bone anchor with pop-on shank and friction fit retainer with low profile edge lock
US13573303 Continuation US9393047B2 (en) 2006-01-09 2012-09-07 Polyaxial bone anchor with pop-on shank and friction fit retainer with low profile edge lock
US13573516 Continuation-In-Part US9918745B2 (en) 2006-01-09 2012-09-19 Polyaxial bone anchor with pop-on shank and winged insert with friction fit compressive collet

Related Child Applications (5)

Application Number Title Priority Date Filing Date
US12802849 Continuation-In-Part US20100331887A1 (en) 2001-05-09 2010-06-15 Longitudinal connecting member with sleeved tensioned cords
US13573516 Continuation-In-Part US9918745B2 (en) 2006-01-09 2012-09-19 Polyaxial bone anchor with pop-on shank and winged insert with friction fit compressive collet
US13573874 Continuation-In-Part US9480517B2 (en) 2006-01-09 2012-10-10 Polyaxial bone anchor with pop-on shank, shank, friction fit retainer, winged insert and low profile edge lock
US14061393 Continuation-In-Part US20140121703A1 (en) 2012-10-31 2013-10-23 Polyaxial bone anchor with pop-on multi-thread shank, some with diametric interference fit inserts
US14674517 Continuation-In-Part US9522021B2 (en) 2004-02-27 2015-03-31 Polyaxial bone anchor with retainer with notch for mono-axial motion

Publications (2)

Publication Number Publication Date
US20130023941A1 true US20130023941A1 (en) 2013-01-24
US9918745B2 true US9918745B2 (en) 2018-03-20

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US13573516 Active US9918745B2 (en) 2006-01-09 2012-09-19 Polyaxial bone anchor with pop-on shank and winged insert with friction fit compressive collet
US13573874 Active US9480517B2 (en) 2006-01-09 2012-10-10 Polyaxial bone anchor with pop-on shank, shank, friction fit retainer, winged insert and low profile edge lock
US13966748 Abandoned US20140018863A1 (en) 2006-01-09 2013-08-14 Polyaxial bone anchor with pop-on shank, friction fit retainer, winged insert and low profile edge lock
US15338817 Active US9883892B2 (en) 2006-01-09 2016-10-31 Polyaxial bone anchor with pop-on shank, friction fit retainer, winged insert and low profile edge lock

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US13573874 Active US9480517B2 (en) 2006-01-09 2012-10-10 Polyaxial bone anchor with pop-on shank, shank, friction fit retainer, winged insert and low profile edge lock
US13966748 Abandoned US20140018863A1 (en) 2006-01-09 2013-08-14 Polyaxial bone anchor with pop-on shank, friction fit retainer, winged insert and low profile edge lock
US15338817 Active US9883892B2 (en) 2006-01-09 2016-10-31 Polyaxial bone anchor with pop-on shank, friction fit retainer, winged insert and low profile edge lock

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US (4) US9918745B2 (en)
EP (1) EP2757988A4 (en)
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Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9393047B2 (en) 2009-06-15 2016-07-19 Roger P. Jackson Polyaxial bone anchor with pop-on shank and friction fit retainer with low profile edge lock
US9168069B2 (en) * 2009-06-15 2015-10-27 Roger P. Jackson Polyaxial bone anchor with pop-on shank and winged insert with lower skirt for engaging a friction fit retainer
US9980753B2 (en) 2009-06-15 2018-05-29 Roger P Jackson pivotal anchor with snap-in-place insert having rotation blocking extensions
CA2736616A1 (en) 2008-09-12 2010-03-18 Marcel Mueller Spinal stabilizing and guiding fixation system
EP2485654A4 (en) 2009-10-05 2014-07-30 Jackson P Roger Polyaxial bone anchor with non-pivotable retainer and pop-on shank, some with friction fit
US8986349B1 (en) * 2009-11-11 2015-03-24 Nuvasive, Inc. Systems and methods for correcting spinal deformities
US9113960B2 (en) * 2010-06-08 2015-08-25 Globus Medical, Inc. Conforming bone stabilization receiver
EP2637585A4 (en) 2010-11-10 2017-01-18 Jackson Roger P Polyaxial bone anchors with pop-on shank, friction fit fully restrained retainer, insert and tool receiving features
FR2978343B1 (en) * 2011-07-25 2013-08-23 Medicrea International anchoring member for osteosynthesis material vertebral
CN103826560A (en) 2011-09-23 2014-05-28 罗杰.P.杰克逊 Polyaxial bone anchor with pop-on shank and winged insert with friction fit compressive collet
EP2964116A4 (en) * 2013-03-08 2016-11-23 Anand K Agarwal Pedicle screw assembly
US20140277153A1 (en) * 2013-03-14 2014-09-18 DePuy Synthes Products, LLC Bone Anchor Assemblies and Methods With Improved Locking
US9453526B2 (en) 2013-04-30 2016-09-27 Degen Medical, Inc. Bottom-loading anchor assembly
EP2996591A2 (en) * 2013-05-13 2016-03-23 Neo Medical SA Orthopedic implant kit
EP2851021B1 (en) * 2013-09-19 2016-12-14 Biedermann Technologies GmbH & Co. KG Coupling assembly for coupling a rod to a bone anchoring element, polyaxial bone anchoring device and modular stabilization device
CN104665905B (en) 2013-11-26 2018-04-06 财团法人工业技术研究院 Bionic fixing means
ES2611014T3 (en) * 2014-01-13 2017-05-04 Biedermann Technologies Gmbh & Co. Kg Assembly for coupling a rod to a bone anchoring element and polyaxial bone anchoring device
EP2918236A1 (en) * 2014-03-14 2015-09-16 Biedermann Technologies GmbH & Co. KG Device for placing a receiving part onto a head of a bone anchoring element
US20170181776A1 (en) * 2014-04-08 2017-06-29 Medacta International Sa Fixing device for a surgical anchor member
EP3031415A1 (en) 2014-12-10 2016-06-15 Biedermann Technologies GmbH & Co. KG Coupling assembly and polyaxial bone anchoring device comprising the same
CN104783886B (en) * 2015-05-06 2017-09-19 山东威高骨科材料股份有限公司 Low screw seat notch and the positioning of the pressure ring assembly method
EP3100691A1 (en) * 2015-06-01 2016-12-07 Silony Medical International AG Uniplanar bone anchoring element

Citations (1341)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5207678B1 (en)
US154864A (en) 1874-09-08 Improvement in bolts and nuts
US1472464A (en) 1922-06-13 1923-10-30 David F Murphy Inside pipe wrench
US2243717A (en) 1938-09-20 1941-05-27 Moreira Franciseo Elias Godoy Surgical device
US2346346A (en) 1941-01-21 1944-04-11 Anderson Roger Fracture immobilization splint
US2362999A (en) 1943-06-28 1944-11-21 Hewitt Elmer Spencer Screwhead
US2531892A (en) 1947-01-27 1950-11-28 Richard T Reese Bolt and nut fixture
US2813450A (en) 1954-05-03 1957-11-19 Dzus William Rotatable fastener having circular toothed tool receiving groove
US3013244A (en) 1957-05-01 1961-12-12 Verdugo Products Company Clamp connection and spacer for electrical transmission lines
US3236275A (en) 1962-10-24 1966-02-22 Robert D Smith Screw driver with an h-shaped drawing bit
US3444775A (en) 1968-02-16 1969-05-20 Lockheed Aircraft Corp Nut formed with multiple torque-off collars
US3604487A (en) 1969-03-10 1971-09-14 Richard S Gilbert Orthopedic screw driving means
US3640416A (en) 1970-10-16 1972-02-08 John J Temple Reverse angle thread system for containers
JPS4867159A (en) 1971-12-20 1973-09-13
JPS50106061A (en) 1974-01-29 1975-08-21
US3989284A (en) 1975-04-23 1976-11-02 Hydril Company Tubular connection
US3997138A (en) 1974-06-18 1976-12-14 Henry Vernon Crock Securing devices and structures
US4013071A (en) 1974-11-11 1977-03-22 Lior Rosenberg Fasteners particularly useful as orthopedic screws
US4033139A (en) 1974-02-08 1977-07-05 Frederick Leonard L Pile driving hammer, apparatus and method
US4041939A (en) 1975-04-28 1977-08-16 Downs Surgical Limited Surgical implant spinal screw
US4190091A (en) 1978-09-26 1980-02-26 Sebastian Zuppichin Screw, screwdriver and screw-holding attachment therefor
US4347845A (en) 1981-03-23 1982-09-07 Mayfield Jack K Hook inserter device
US4369769A (en) 1980-06-13 1983-01-25 Edwards Charles C Spinal fixation device and method
US4373754A (en) 1978-08-09 1983-02-15 Hydril Company Threaded connector
US4409968A (en) 1980-02-04 1983-10-18 Drummond Denis S Method and apparatus for engaging a hook assembly to a spinal column
US4448191A (en) 1981-07-07 1984-05-15 Rodnyansky Lazar I Implantable correctant of a spinal curvature and a method for treatment of a spinal curvature
US4484570A (en) 1980-05-28 1984-11-27 Synthes Ltd. Device comprising an implant and screws for fastening said implant to a bone, and a device for connecting two separated pieces of bone
US4600225A (en) 1983-12-23 1986-07-15 Interlock Technologies Corporation Tubular connection having a parallel chevron thread
US4600224A (en) 1983-12-23 1986-07-15 Interlock Technologies Corporation Tubular connection having a chevron wedge thread
US4653486A (en) 1984-04-12 1987-03-31 Coker Tom P Fastener, particularly suited for orthopedic use
US4653481A (en) 1985-07-24 1987-03-31 Howland Robert S Advanced spine fixation system and method
US4703954A (en) 1985-11-08 1987-11-03 Hydril Company Threaded pipe connection having wedge threads
US4707001A (en) 1986-06-20 1987-11-17 Seal-Tech, Inc. Liner connection
US4743260A (en) 1985-06-10 1988-05-10 Burton Charles V Method for a flexible stabilization system for a vertebral column
US4748260A (en) 1986-12-22 1988-05-31 Ethyl Corporation Preparation of amine alanes
US4759672A (en) 1987-05-08 1988-07-26 Illinois Tool Works Inc. Fastener head with stabilizing ring
US4790297A (en) 1987-07-24 1988-12-13 Biotechnology, Inc. Spinal fixation method and system
US4836196A (en) 1988-01-11 1989-06-06 Acromed Corporation Surgically implantable spinal correction system
WO1989009030A1 (en) 1988-04-02 1989-10-05 Aesculap Ag Bone screw
US4877020A (en) 1984-11-30 1989-10-31 Vich Jose M O Apparatus for bone graft
US4887596A (en) 1988-03-02 1989-12-19 Synthes (U.S.A.) Open backed pedicle screw
WO1989012431A1 (en) 1988-06-13 1989-12-28 Michelson Gary K Threaded spinal implant
US4917606A (en) 1988-05-09 1990-04-17 Ipco Corporation Threaded dental anchor
US4946458A (en) 1986-04-25 1990-08-07 Harms Juergen Pedicle screw
US4950269A (en) 1988-06-13 1990-08-21 Acromed Corporation Spinal column fixation device
US4961740A (en) 1988-10-17 1990-10-09 Surgical Dynamics, Inc. V-thread fusion cage and method of fusing a bone joint
US5005562A (en) 1988-06-24 1991-04-09 Societe De Fabrication De Material Orthopedique Implant for spinal osteosynthesis device, in particular in traumatology
US5019080A (en) 1990-02-13 1991-05-28 Trextron Inc. Drive system for prosthetic fasteners
US5022791A (en) 1989-02-06 1991-06-11 H. Weidmann Ag Process, anchoring member, and clamping device for clamping a rod
US5034011A (en) 1990-08-09 1991-07-23 Advanced Spine Fixation Systems Incorporated Segmental instrumentation of the posterior spine
WO1991016018A1 (en) 1989-02-03 1991-10-31 Francis Henri Breard Flexible intervertebral stabilizer, and method and apparatus for determining or controlling its tension before it is placed on the back bone
WO1991016020A1 (en) 1990-04-26 1991-10-31 Danninger Medical Technology, Inc. Transpedicular screw system and method of use
US5067955A (en) 1989-04-13 1991-11-26 Societe De Fabrication De Material Orthopedique Vertebral implant for osteosynthesis device
US5067428A (en) 1990-09-21 1991-11-26 Dickerson Mack F Portable boat dock
US5084048A (en) 1989-07-12 1992-01-28 Sulzer Brothers Limited Implant for vertebrae with spinal stabilizer
US5092635A (en) 1990-04-27 1992-03-03 Baker Hughes Incorporated Buttress thread form
WO1992003100A1 (en) 1990-08-21 1992-03-05 Synthes Ag, Chur Implant for osteosynthesis device, in particular for correcting the vertebral column
US5102412A (en) 1990-06-19 1992-04-07 Chaim Rogozinski System for instrumentation of the spine in the treatment of spinal deformities
DE9202745U1 (en) 1992-03-02 1992-04-30 Howmedica Gmbh, 2314 Schoenkirchen, De
US5129388A (en) 1989-02-09 1992-07-14 Vignaud Jean Louis Device for supporting the spinal column
US5129899A (en) 1991-03-27 1992-07-14 Smith & Nephew Richards Inc. Bone fixation apparatus
US5147363A (en) 1989-12-21 1992-09-15 Haerle Anton Screw for use in osteosynthesis
US5154719A (en) 1990-02-19 1992-10-13 Societe De Fabrication De Materiel Orthopedique - Sofamor Implant for a device for osteosynthesis, in particular of the spine
US5176483A (en) 1991-01-21 1993-01-05 Inq. Walter Hengst Gmbh & Co. Detachment lock for a bolt connection
US5176678A (en) 1991-03-14 1993-01-05 Tsou Paul M Orthopaedic device with angularly adjustable anchor attachments to the vertebrae
US5176680A (en) 1990-02-08 1993-01-05 Vignaud Jean Louis Device for the adjustable fixing of spinal osteosynthesis rods
US5180393A (en) 1990-09-21 1993-01-19 Polyclinique De Bourgogne & Les Hortensiad Artificial ligament for the spine
US5201734A (en) 1988-12-21 1993-04-13 Zimmer, Inc. Spinal locking sleeve assembly
US5207678A (en) 1989-07-20 1993-05-04 Prufer Pedicle screw and receiver member therefore
US5217497A (en) 1990-07-04 1993-06-08 Mehdian Seyed M H Apparatus for use in the treatment of spinal disorders
US5257993A (en) 1991-10-04 1993-11-02 Acromed Corporation Top-entry rod retainer
WO1993021848A1 (en) 1992-04-28 1993-11-11 Huene Donald R Absorbable bone screw and tool for its insertion
US5261907A (en) 1991-05-17 1993-11-16 Vignaud Jean L Interconnecting device able to lock spinal osteosynthesis fasteners
US5263953A (en) 1991-12-31 1993-11-23 Spine-Tech, Inc. Apparatus and system for fusing bone joints
WO1993025161A2 (en) 1992-06-08 1993-12-23 Campbell Robert M Jr Segmental rib carriage instrumentation and associated methods
US5275601A (en) 1991-09-03 1994-01-04 Synthes (U.S.A) Self-locking resorbable screws and plates for internal fixation of bone fractures and tendon-to-bone attachment
US5282862A (en) 1991-12-03 1994-02-01 Artifex Ltd. Spinal implant system and a method for installing the implant onto a vertebral column
US5306275A (en) 1992-12-31 1994-04-26 Bryan Donald W Lumbar spine fixation apparatus and method
US5312404A (en) 1990-07-24 1994-05-17 Acromed Corporation Spinal column retaining apparatus
WO1994010927A1 (en) 1992-11-10 1994-05-26 Sofamor S.N.C. Spine osteosynthesis instrumentation for an anterior approach
US5321901A (en) 1990-04-03 1994-06-21 Trisport Limited Studs and sockets for studded footwear
US5330472A (en) 1990-06-13 1994-07-19 Howmedica Gmbh Device for applying a tensional force between vertebrae of the human vertebral column
DE4239716C1 (en) 1992-11-26 1994-08-04 Kernforschungsz Karlsruhe Elastic implant for stabilising degenerated spinal column segments
US5354292A (en) 1993-03-02 1994-10-11 Braeuer Harry L Surgical mesh introduce with bone screw applicator for the repair of an inguinal hernia
US5358289A (en) 1992-03-13 1994-10-25 Nkk Corporation Buttress-threaded tubular connection
WO1994026191A1 (en) 1993-05-18 1994-11-24 Schäfer Micomed GmbH Osteosynthesis device
WO1994028824A2 (en) 1988-06-13 1994-12-22 Karlin Technology, Inc. Apparatus and method of inserting spinal implants
US5375823A (en) 1992-06-25 1994-12-27 Societe Psi Application of an improved damper to an intervertebral stabilization device
WO1995001132A1 (en) 1993-07-02 1995-01-12 Synthes Ag, Chur Posterior vertebral column implant
US5385583A (en) 1991-08-19 1995-01-31 Sofamor Implant for an osteosynthesis device, particular for the spine
US5387211A (en) 1993-03-10 1995-02-07 Trimedyne, Inc. Multi-head laser assembly
US5395371A (en) 1991-07-15 1995-03-07 Danek Group, Inc. Spinal fixation system
US5409489A (en) 1993-01-12 1995-04-25 Sioufi; Georges Surgical instrument for cone-shaped sub-trochanteric rotational osteotomy
US5415661A (en) 1993-03-24 1995-05-16 University Of Miami Implantable spinal assist device
WO1995013755A1 (en) 1993-11-19 1995-05-26 Cross Medical Products, Inc. Rod anchor seat having sliding closure member
US5423816A (en) 1993-07-29 1995-06-13 Lin; Chih I. Intervertebral locking device
US5427418A (en) 1986-07-18 1995-06-27 Watts; John D. High strength, low torque threaded tubular connection
US5429639A (en) 1993-05-17 1995-07-04 Tornier S.A. Spine fixator for holding a vertebral column
US5434001A (en) 1990-06-23 1995-07-18 Sumitomo Electric Industries, Ltd. Fluororesin-coated article
FR2715825A1 (en) 1994-02-09 1995-08-11 Soprane Sa Self-aligning rod for spinal osteosynthesis apparatus
EP0667127A1 (en) 1994-02-10 1995-08-16 Acromed B.V. Device for implantation for the purpose of limiting the movements between two vertebrae
US5443467A (en) 1993-03-10 1995-08-22 Biedermann Motech Gmbh Bone screw
EP0669109A1 (en) 1994-02-28 1995-08-30 SULZER Medizinaltechnik AG Stabilizer for adjacent vertebrae
FR2717370A1 (en) 1994-03-18 1995-09-22 Moreau Patrice Intervertebral stabilising prosthesis for spinal reinforcement inserted during spinal surgery
EP0677277A2 (en) 1994-03-18 1995-10-18 Patrice Moreau Spinal prosthetic assembly
FR2718946A1 (en) 1994-04-25 1995-10-27 Soprane Sa Lumbar-sacral osteosynthesis fixing
WO1995028889A1 (en) 1994-04-20 1995-11-02 Pierre Roussouly Device for stabilizing orthopedic anchors
DE4425392A1 (en) 1994-04-28 1995-11-02 Schaefer Micomed Gmbh Holder for fixing bar in bone surgery
US5466237A (en) 1993-11-19 1995-11-14 Cross Medical Products, Inc. Variable locking stabilizer anchor seat and screw
US5468241A (en) 1988-02-18 1995-11-21 Howmedica Gmbh Support device for the human vertebral column
WO1995031947A1 (en) 1994-05-23 1995-11-30 Spine-Tech, Inc. Intervertebral fusion implant
US5474551A (en) 1994-11-18 1995-12-12 Smith & Nephew Richards, Inc. Universal coupler for spinal fixation
US5476464A (en) 1993-02-25 1995-12-19 Howmedica Gmbh Device for setting a spine
US5476462A (en) 1992-06-30 1995-12-19 Zimmer, Inc. Spinal implant system
US5480401A (en) 1993-02-17 1996-01-02 Psi Extra-discal inter-vertebral prosthesis for controlling the variations of the inter-vertebral distance by means of a double damper
US5484440A (en) 1992-11-03 1996-01-16 Zimmer, Inc. Bone screw and screwdriver
US5487742A (en) 1990-03-08 1996-01-30 Sofamore Danek Group Transverse fixation device for a spinal osteosynthesis system
US5489307A (en) 1993-02-10 1996-02-06 Spine-Tech, Inc. Spinal stabilization surgical method
US5490750A (en) 1994-06-09 1996-02-13 Gundy; William P. Anchoring device for a threaded member
US5499892A (en) 1993-06-16 1996-03-19 Lock-N-Stitch International Apparatus for repairing cracks
US5501684A (en) 1992-06-25 1996-03-26 Synthes (U.S.A.) Osteosynthetic fixation device
US5505731A (en) 1993-09-01 1996-04-09 Tornier Sa Screw for lumbar-sacral fixator
US5507745A (en) 1994-02-18 1996-04-16 Sofamor, S.N.C. Occipito-cervical osteosynthesis instrumentation
US5534001A (en) 1993-05-11 1996-07-09 Synthes (U.S.A.) Osteosynthetic fixation element and manipulation device
WO1996021396A1 (en) 1995-01-12 1996-07-18 Euros Spinal fixator
US5540688A (en) 1991-05-30 1996-07-30 Societe "Psi" Intervertebral stabilization device incorporating dampers
US5545165A (en) 1992-10-09 1996-08-13 Biedermann Motech Gmbh Anchoring member
WO1996025104A1 (en) 1995-02-15 1996-08-22 Stone Kevin R Improved suture anchor assembly
US5549607A (en) 1993-02-19 1996-08-27 Alphatec Manufacturing, Inc, Apparatus for spinal fixation system
US5549608A (en) 1995-07-13 1996-08-27 Fastenetix, L.L.C. Advanced polyaxial locking screw and coupling element device for use with rod fixation apparatus
US5554157A (en) 1995-07-13 1996-09-10 Fastenetix, L.L.C. Rod securing polyaxial locking screw and coupling element assembly
DE19507141A1 (en) 1995-03-01 1996-09-12 Juergen Prof Dr Med Harms Tool for stopping movement between adaptor and head of bone screw
WO1996028105A1 (en) 1995-03-15 1996-09-19 Harms Juergen Cervical vertebra stabilisation
US5562660A (en) 1993-02-09 1996-10-08 Plus Endoprothetik Ag Apparatus for stiffening and/or correcting the vertebral column
US5562663A (en) 1995-06-07 1996-10-08 Danek Medical, Inc. Implant interconnection mechanism
US5569251A (en) 1993-07-16 1996-10-29 Bhc Engineering, L.P. Implant device and method of installing
US5569247A (en) 1995-03-27 1996-10-29 Smith & Nephew Richards, Inc. Enhanced variable angle bone bolt
US5578033A (en) 1995-07-13 1996-11-26 Fastenetix, L.L.C. Advanced polyaxial locking hook and coupling element device for use with side loading rod fixation devices
US5584834A (en) 1995-07-13 1996-12-17 Fastenetix, L.L.C. Polyaxial locking screw and coupling element assembly for use with side loading rod fixation apparatus
US5586984A (en) 1995-07-13 1996-12-24 Fastenetix, L.L.C. Polyaxial locking screw and coupling element assembly for use with rod fixation apparatus
WO1996041582A1 (en) 1995-06-13 1996-12-27 Societe De Fabrication De Materiel Orthopedique En Abrege - Sofamor Implant for surgically treating a vertebral isthmic fracture
US5591166A (en) 1995-03-27 1997-01-07 Smith & Nephew Richards, Inc. Multi angle bone bolt
US5601553A (en) 1994-10-03 1997-02-11 Synthes (U.S.A.) Locking plate and bone screw
US5605458A (en) 1995-03-06 1997-02-25 Crystal Medical Technology, A Division Of Folsom Metal Products, Inc. Negative load flank implant connector
US5607428A (en) 1995-05-01 1997-03-04 Lin; Kwan C. Orthopedic fixation device having a double-threaded screw
US5607304A (en) 1995-04-17 1997-03-04 Crystal Medical Technology, A Division Of Folsom Metal Products, Inc. Implant connector
US5607425A (en) 1993-10-08 1997-03-04 Rogozinski; Chaim Apparatus, method and system for the treatment of spinal conditions
US5607426A (en) 1995-04-13 1997-03-04 Fastenletix, L.L.C. Threaded polyaxial locking screw plate assembly
US5609593A (en) 1995-07-13 1997-03-11 Fastenetix, Llc Advanced polyaxial locking hook and coupling element device for use with top loading rod fixation devices
US5609594A (en) 1995-07-13 1997-03-11 Fastenetix Llc Extending hook and polyaxial coupling element device for use with side loading road fixation devices
US5611800A (en) 1994-02-15 1997-03-18 Alphatec Manufacturing, Inc. Spinal fixation system
WO1997014368A1 (en) 1995-10-17 1997-04-24 Wright Medical Technology, Inc. Multi-planar locking mechanism for bone fixation
US5628740A (en) 1993-12-23 1997-05-13 Mullane; Thomas S. Articulating toggle bolt bone screw
US5630817A (en) 1992-11-18 1997-05-20 Eurosurgical Rod attachment device for rachidian orthopaedy
US5641256A (en) 1994-06-09 1997-06-24 Npc, Inc. Anchoring device for a threaded member
US5643260A (en) 1995-02-14 1997-07-01 Smith & Nephew, Inc. Orthopedic fixation system
US5643261A (en) 1994-03-10 1997-07-01 Schafer Micomed Gmbh Osteosynthesis device
WO1997027812A1 (en) 1996-01-31 1997-08-07 Axel Kirsch Screw for insertion into a bone and tool for removing this screw
WO1997030649A1 (en) 1996-02-20 1997-08-28 Medicinelodge, Inc. Ligament bone anchor and method for its use
US5662653A (en) 1996-02-22 1997-09-02 Pioneer Laboratories, Inc. Surgical rod-to-bone attachment
US5662652A (en) 1994-04-28 1997-09-02 Schafer Micomed Gmbh Bone surgery holding apparatus
US5667508A (en) 1996-05-01 1997-09-16 Fastenetix, Llc Unitary locking cap for use with a pedicle screw
US5669911A (en) 1995-04-13 1997-09-23 Fastenetix, L.L.C. Polyaxial pedicle screw
US5669909A (en) 1995-03-27 1997-09-23 Danek Medical, Inc. Interbody fusion device and method for restoration of normal spinal anatomy
US5672176A (en) 1995-03-15 1997-09-30 Biedermann; Lutz Anchoring member
US5672175A (en) 1993-08-27 1997-09-30 Martin; Jean Raymond Dynamic implanted spinal orthosis and operative procedure for fitting
US5676665A (en) 1995-06-23 1997-10-14 Bryan; Donald W. Spinal fixation apparatus and method
US5676703A (en) 1994-05-11 1997-10-14 Gelbard; Steven D. Spinal stabilization implant system
WO1997037604A1 (en) 1996-04-09 1997-10-16 Waldemar Link (Gmbh & Co.) Spinal fixing device
WO1997037605A1 (en) 1996-04-03 1997-10-16 Aesculap - Jbs Cap for locking a member into a groove
US5683390A (en) 1994-02-22 1997-11-04 Howmedica Gmbh Correcting a spinal column
US5683391A (en) 1995-06-07 1997-11-04 Danek Medical, Inc. Anterior spinal instrumentation and method for implantation and revision
US5697929A (en) 1995-10-18 1997-12-16 Cross Medical Products, Inc. Self-limiting set screw for use with spinal implant systems
US5702393A (en) 1995-12-07 1997-12-30 Groupe Lepine Assembly device for elongate components of osteosynthesis, especially spinal, equipment
US5711709A (en) 1996-03-07 1998-01-27 Douville-Johnston Corporation Self-aligning rod end coupler
US5713898A (en) 1993-05-18 1998-02-03 Schafer Micomed Gmbh Orthopedic surgical holding device
US5716356A (en) 1994-07-18 1998-02-10 Biedermann; Lutz Anchoring member and adjustment tool therefor
US5720751A (en) 1996-11-27 1998-02-24 Jackson; Roger P. Tools for use in seating spinal rods in open ended implants
US5723013A (en) 1995-02-06 1998-03-03 Jbs S.A. Spacer implant for substituting missing vertebrae
US5725528A (en) 1997-02-12 1998-03-10 Third Millennium Engineering, Llc Modular polyaxial locking pedicle screw
US5728098A (en) 1996-11-07 1998-03-17 Sdgi Holdings, Inc. Multi-angle bone screw assembly using shape-memory technology
US5733286A (en) 1997-02-12 1998-03-31 Third Millennium Engineering, Llc Rod securing polyaxial locking screw and coupling element assembly
WO1998012977A1 (en) 1996-09-24 1998-04-02 Sdgi Holdings, Inc. Multi-axial bone screw assembly
WO1998015233A1 (en) 1996-10-09 1998-04-16 Third Millennium Engineering, L.L.C. A modular polyaxial locking pedicle screw
US5741254A (en) 1993-04-19 1998-04-21 Stryker Corporation Implant for an ostheosynthesis device, in particular for the spine
US5752957A (en) 1997-02-12 1998-05-19 Third Millennium Engineering, Llc Polyaxial mechanism for use with orthopaedic implant devices
WO1998025534A1 (en) 1996-12-12 1998-06-18 Synthes Ag Chur Device for connecting a longitudinal support to a pedicle screw
DE29806563U1 (en) 1998-04-09 1998-06-18 Howmedica Gmbh Pedicle screw and an assembly aid for
US5782833A (en) 1996-12-20 1998-07-21 Haider; Thomas T. Pedicle screw system for osteosynthesis
WO1998034556A1 (en) 1997-02-11 1998-08-13 Michelson Gary K Skeletal plating system
WO1998034554A1 (en) 1997-02-11 1998-08-13 Sdgi Holdings, Inc. Multi-axial bone screw assembly
US5797911A (en) 1996-09-24 1998-08-25 Sdgi Holdings, Inc. Multi-axial bone screw assembly
US5800547A (en) 1994-08-20 1998-09-01 Schafer Micomed Gmbh Ventral intervertebral implant
US5800435A (en) 1996-10-09 1998-09-01 Techsys, Llc Modular spinal plate for use with modular polyaxial locking pedicle screws
WO1998038924A2 (en) 1997-03-06 1998-09-11 Sulzer Spine-Tech, Inc. Lordotic spinal implant
JPH10277070A (en) 1997-04-09 1998-10-20 Ito Kaoru Artificial intervertebral joint
EP0885598A2 (en) 1997-06-16 1998-12-23 Howmedica GmbH A receiving part for a retaining component of a vertebral column implant
US5863293A (en) 1996-10-18 1999-01-26 Spinal Innovations Spinal implant fixation assembly
WO1999003415A1 (en) 1997-07-14 1999-01-28 Sdgi Holdings, Inc. Multi-axial bone screw
WO1999005980A1 (en) 1997-07-31 1999-02-11 Plus Endoprothetik Ag Device for stiffening and/or correcting a vertebral column or such like
US5873878A (en) 1996-04-30 1999-02-23 Harms; Juergen Anchoring member
US5879351A (en) 1998-04-03 1999-03-09 Eurosurgical Spinal osteosynthesis device adaptable to differences of alignment, angulation and depth of penetration of pedicle screws
US5882350A (en) 1995-04-13 1999-03-16 Fastenetix, Llc Polyaxial pedicle screw having a threaded and tapered compression locking mechanism
USRE36221E (en) 1989-02-03 1999-06-01 Breard; Francis Henri Flexible inter-vertebral stabilizer as well as process and apparatus for determining or verifying its tension before installation on the spinal column
DE29903342U1 (en) 1999-02-24 1999-06-02 Grzibek Egbert Fixing for retaining elements of spinal implants
US5910141A (en) 1997-02-12 1999-06-08 Sdgi Holdings, Inc. Rod introduction apparatus
US5910142A (en) 1998-10-19 1999-06-08 Bones Consulting, Llc Polyaxial pedicle screw having a rod clamping split ferrule coupling element
WO1999032084A1 (en) 1997-12-22 1999-07-01 Edko Trading And Representation Company Limited Compositions for the treatment of skin and anorectal conditions
US5928236A (en) 1994-07-04 1999-07-27 Depuy France Locking pin or screw device for an osteosynthesis plate or for the coaptation of bone fragments
WO1999038463A2 (en) 1998-01-28 1999-08-05 Sdgi Holdings, Inc. Methods and instruments for interbody fusion
US5938663A (en) 1995-03-06 1999-08-17 Stryker France, S.A. Spinal instruments, particularly for a rod
US5941880A (en) 1998-01-02 1999-08-24 The J7 Summit Medical Group, Lll Coupling member for cross-linking intervertebral cage devices
US5944465A (en) 1997-08-04 1999-08-31 Janitzki; Bernhard M. Low tolerance threaded fastener
US5951553A (en) 1997-07-14 1999-09-14 Sdgi Holdings, Inc. Methods and apparatus for fusionless treatment of spinal deformities
WO1999047083A1 (en) 1998-03-20 1999-09-23 Sulzer Spine-Tech Inc. Intervertebral implant with reduced contact area and method
US5961517A (en) 1994-07-18 1999-10-05 Biedermann; Lutz Anchoring member and adjustment tool therefor
WO1999049802A1 (en) 1998-03-31 1999-10-07 Bianchi Connecting device for osteosynthesis
US5964760A (en) 1996-10-18 1999-10-12 Spinal Innovations Spinal implant fixation assembly
US5964767A (en) 1997-09-12 1999-10-12 Tapia; Eduardo Armando Hollow sealable device for temporary or permanent surgical placement through a bone to provide a passageway into a cavity or internal anatomic site in a mammal
DE29810798U1 (en) 1998-06-17 1999-10-28 Schaefer Micomed Gmbh osteosynthesis
US5997539A (en) 1997-05-15 1999-12-07 Spinal Concepts, Inc. Polyaxial pedicle screw having a compression locking rod gripping mechanism
US6001098A (en) 1997-01-17 1999-12-14 Howmedica Gmbh Connecting element for spinal stabilizing system
US6004349A (en) 1997-01-06 1999-12-21 Jackson; Roger P. Set screw for use with osteosynthesis apparatus
US6010503A (en) 1998-04-03 2000-01-04 Spinal Innovations, Llc Locking mechanism
WO2000000001A2 (en) 1999-10-15 2000-01-06 Phonak Ag Binaural synchronisation
US6019759A (en) 1996-07-29 2000-02-01 Rogozinski; Chaim Multi-Directional fasteners or attachment devices for spinal implant elements
US6022350A (en) 1996-05-13 2000-02-08 Stryker France S.A. Bone fixing device, in particular for fixing to the sacrum during osteosynthesis of the backbone
WO2000015125A1 (en) 1998-09-11 2000-03-23 Synthes Ag Chur Variable angle spinal fixation system
WO2000022997A1 (en) 1998-10-22 2000-04-27 Jackson Roger P Set screw for medical implants
US6063088A (en) 1997-03-24 2000-05-16 United States Surgical Corporation Method and instrumentation for implant insertion
WO2000027297A1 (en) 1998-11-09 2000-05-18 Sdgi Holdings, Inc. Reverse angle thread for preventing splaying in medical devices
US6077262A (en) 1993-06-04 2000-06-20 Synthes (U.S.A.) Posterior spinal implant
US6086588A (en) 1997-05-07 2000-07-11 Aesculap Ag & Co. Kg Osteosynthesis system for vertebra arthrodesis
US6090111A (en) 1998-06-17 2000-07-18 Surgical Dynamics, Inc. Device for securing spinal rods
US6099528A (en) 1997-05-29 2000-08-08 Sofamor S.N.C. Vertebral rod for spinal osteosynthesis instrumentation and osteosynthesis instrumentation, including said rod
US6110172A (en) 1998-07-31 2000-08-29 Jackson; Roger P. Closure system for open ended osteosynthesis apparatus
US6113601A (en) 1998-06-12 2000-09-05 Bones Consulting, Llc Polyaxial pedicle screw having a loosely coupled locking cap
US6117137A (en) 1998-04-07 2000-09-12 Schafer Micomed Gmbh Osteosynthesis device
US6129763A (en) 1996-09-13 2000-10-10 Chauvin; Jean-Luc Expandable osteosynthesis cage
US6132431A (en) 1996-04-18 2000-10-17 Tresona Instrument Ab Device and method for correcting and stabilizing a deviating curvature of a spinal column
US6136002A (en) 1999-02-05 2000-10-24 Industrial Technology Research Institute Anterior spinal fixation system
US6136003A (en) 1995-06-06 2000-10-24 Sdgi Holdings, Inc. Device for linking adjacent rods in spinal instrumentation
WO2000065268A1 (en) 1999-04-23 2000-11-02 John Gandy Corporation Thread form with multifaceted flanks
US6143032A (en) 1997-11-12 2000-11-07 Schafer Micomed Gmbh Intervertebral implant
WO2000066045A1 (en) 1999-05-05 2000-11-09 Michelson Gary K Spinal fusion implants with opposed locking screws
US6146383A (en) 1998-02-02 2000-11-14 Sulzer Orthopadie Ag Pivotal securing system at a bone screw
JP2000325358A (en) 1999-05-17 2000-11-28 Robert Riido Shokai:Kk Wire rod fixing device
WO2000072769A1 (en) 1999-05-28 2000-12-07 Sdgi Holdings, Inc. Device selectively preventing locking of shape-memory couplings
US6162223A (en) 1999-04-09 2000-12-19 Smith & Nephew, Inc. Dynamic wrist fixation apparatus for early joint motion in distal radius fractures
US6168597B1 (en) 1996-02-28 2001-01-02 Lutz Biedermann Bone screw
FR2796545A1 (en) 1999-07-22 2001-01-26 Dimso Sa Polyaxial connector for spinal support frame has head, coupling and connector with deformable seating
WO2001008574A1 (en) 1999-08-02 2001-02-08 Lutz Biedermann Bone screw
US6186718B1 (en) 1998-06-18 2001-02-13 Northrop Grumman Corporation Threaded fastener having a head with a triangle centerpost within a triangle recess
WO2001010317A1 (en) 1999-08-05 2001-02-15 Traiber, S.A. Intervertebral fixing system used in treatments of the spinal column
US6193720B1 (en) 1998-11-30 2001-02-27 Depuy Orthopaedics, Inc. Cervical spine stabilization method and system
WO2001015612A1 (en) 1999-09-01 2001-03-08 Sdgi Holdings, Inc. Multi-axial bone screw assembly
WO2001022893A1 (en) 1999-09-27 2001-04-05 Blackstone Medical, Inc. A surgical screw system and related methods
US6214012B1 (en) 1998-11-13 2001-04-10 Harrington Arthritis Research Center Method and apparatus for delivering material to a desired location
WO2001028436A1 (en) 1999-10-20 2001-04-26 Sdgi Holdings, Inc. Instruments and methods for stabilization of bony structures
WO2001028435A1 (en) 1999-10-15 2001-04-26 Sdgi Holdings, Inc. Distraction instrument with fins for maintaining insertion location
FR2799949A1 (en) 1999-10-22 2001-04-27 Abder Benazza Spinal osteosynthesis apparatus has lengthwise supports in form of single or double spiral springs to allow for movement
US6224598B1 (en) 2000-02-16 2001-05-01 Roger P. Jackson Bone screw threaded plug closure with central set screw
US6224596B1 (en) 1997-01-06 2001-05-01 Roger P. Jackson Set screw for use with osteosynthesis apparatus
US6235028B1 (en) 2000-02-14 2001-05-22 Sdgi Holdings, Inc. Surgical guide rod
US6235034B1 (en) 1997-10-24 2001-05-22 Robert S. Bray Bone plate and bone screw guide mechanism
DE19951145A1 (en) 1999-10-23 2001-05-31 Schaefer Micomed Gmbh Osteosynthetic device has bone-screw, with fork head with groove for holding correction bar, notches , snap-on cap, lugs and holders
US6241731B1 (en) 1998-08-11 2001-06-05 Daniel Fiz Plate and screw assembly for fixing bones
US6241730B1 (en) 1997-11-26 2001-06-05 Scient'x (Societe A Responsabilite Limitee) Intervertebral link device capable of axial and angular displacement
US6248107B1 (en) 2000-03-15 2001-06-19 Sdgi Holdings, Inc. System for reducing the displacement of a vertebra
US6248105B1 (en) 1997-05-17 2001-06-19 Synthes (U.S.A.) Device for connecting a longitudinal support with a pedicle screw
US6251112B1 (en) 2000-04-18 2001-06-26 Roger P. Jackson Thin profile closure cap for open ended medical implant
WO2001045576A1 (en) 1999-12-20 2001-06-28 Synthes Ag Chur Device for the stabilisation of two adjacent verterbral bodies of the spine
US6254602B1 (en) 1999-05-28 2001-07-03 Sdgi Holdings, Inc. Advanced coupling device using shape-memory technology
US20010007941A1 (en) 1998-08-21 2001-07-12 Beatrice Steiner Bone anchoring assembly with a snap-in ballhead
US20010010000A1 (en) 1995-01-25 2001-07-26 Stanley Gertzbein Spinal rod transverse connectors
US6267765B1 (en) 1997-06-03 2001-07-31 Jean Taylor Multidirectional adaptable vertebral osteosyntsis device with reduced space requirement
US6267764B1 (en) 1996-11-15 2001-07-31 Stryker France S.A. Osteosynthesis system with elastic deformation for spinal column
US20010011172A1 (en) 2000-02-01 2001-08-02 Hand Innovations, Inc. Volar fixation system with articulating stabilization pegs
EP1121902A2 (en) 2000-02-07 2001-08-08 Ulrich GmbH & Co. KG Pedicle screw
WO2001058370A1 (en) 2000-02-08 2001-08-16 Cross Medical Products, Inc. Self-aligning cap nut for use with a spinal rod anchor
US6280445B1 (en) 1999-04-16 2001-08-28 Sdgi Holdings, Inc. Multi-axial bone anchor system
US6287308B1 (en) 1997-07-14 2001-09-11 Sdgi Holdings, Inc. Methods and apparatus for fusionless treatment of spinal deformities
WO2001067974A1 (en) 2000-03-15 2001-09-20 Sdgi Holdings, Inc. Multi-axial bone anchor system
US20010023350A1 (en) 2000-03-15 2001-09-20 Gil-Woon Choi Spine supporting system
WO2001067972A2 (en) 2000-03-15 2001-09-20 Sdgi Holdings, Inc. Spinal implant connection assembly
US6296643B1 (en) 1999-04-23 2001-10-02 Sdgi Holdings, Inc. Device for the correction of spinal deformities through vertebral body tethering without fusion
US6299613B1 (en) 1999-04-23 2001-10-09 Sdgi Holdings, Inc. Method for the correction of spinal deformities through vertebral body tethering without fusion
US6299616B1 (en) 1998-11-07 2001-10-09 Aesculap Ag & Co. Kg Endoscopic insertion apparatus
US6302888B1 (en) 1999-03-19 2001-10-16 Interpore Cross International Locking dovetail and self-limiting set screw assembly for a spinal stabilization member
US6309391B1 (en) 2000-03-15 2001-10-30 Sdgi Holding, Inc. Multidirectional pivoting bone screw and fixation system
US20010037111A1 (en) 2000-05-08 2001-11-01 Dixon Robert A. Method and apparatus for dynamized spinal stabilization
US6315564B1 (en) 2000-03-21 2001-11-13 Ricardo Levisman Bone implant
US20010041894A1 (en) 1998-05-19 2001-11-15 Campbell Christopher M. Anterior cervical plate and fixation system
US20010047173A1 (en) 1998-09-29 2001-11-29 Fridolin Schlapfer Device for connecting a longitudinal support to a bone anchor
US20010047174A1 (en) 2000-05-12 2001-11-29 Cosimo Donno Connection of a bone screw to a bone plate
US20010047175A1 (en) 2000-03-14 2001-11-29 Doubler Robert L. Method of making a bonescrew
US6331179B1 (en) 2000-01-06 2001-12-18 Spinal Concepts, Inc. System and method for stabilizing the human spine with a bone plate
US20010052438A1 (en) 1999-04-30 2001-12-20 Robert Tucker Protection plug
US20020004683A1 (en) 2000-07-10 2002-01-10 Michelson Gary K. Flanged interbody spinal fusion implants
US20020010467A1 (en) 2000-07-22 2002-01-24 Corin Spinal Systems Limited Pedicle attachment assembly
US20020013586A1 (en) 2000-03-01 2002-01-31 Justis Jeff R. Superelastic spinal stabilization system and method
US20020016594A1 (en) 1998-11-26 2002-02-07 Schlapfer Fridolin J. Bone screw
JP2002052030A (en) 2000-08-07 2002-02-19 Peter Muller Stem screw
GB2365345A (en) 2000-07-22 2002-02-20 Corin Spinal Systems Ltd A pedicle attachment assembly
US20020022764A1 (en) 1996-03-22 2002-02-21 Smith Maurice M. Devices and methods for percutaneous surgery
US20020022842A1 (en) 2000-04-18 2002-02-21 Horvath Andres A. Medical fastener cap system
US20020035365A1 (en) 2000-07-28 2002-03-21 Kumar Kris G. Spinal fixation system
US20020035367A1 (en) 2000-06-30 2002-03-21 Stephen Ritland Polyaxial connection device and method
WO2002022030A2 (en) 2000-09-15 2002-03-21 Sdgi Holdings, Inc. Posterior fixation system
US20020035366A1 (en) 2000-09-18 2002-03-21 Reto Walder Pedicle screw for intervertebral support elements
EP1190678A2 (en) 2000-09-22 2002-03-27 DePuy Acromed, Inc. Lock cap anchor assembly for orthopaedic fixation
US6368321B1 (en) 2000-12-04 2002-04-09 Roger P. Jackson Lockable swivel head bone screw
FR2814936A1 (en) 2000-10-11 2002-04-12 Frederic Fortin Supple one-piece vertebral connector has central core with elastic fibres, fixings and polymerised resin covering
US6371957B1 (en) 1997-01-22 2002-04-16 Synthes (Usa) Device for connecting a longitudinal bar to a pedicle screw
US20020045899A1 (en) 1995-04-13 2002-04-18 Errico Joseph P. Anterior cervical plate having polyaxial locking screws and sliding coupling elements
US20020049446A1 (en) 2000-08-08 2002-04-25 Harkey Haynes Louis Orthopaedic rod/plate locking mechanisms and surgical methods
FR2815535A1 (en) 2000-10-23 2002-04-26 Patrice Moreau Pedicular implant has screw with threaded rod on head, two hemispherical washers and nut
US6379356B1 (en) 2000-04-26 2002-04-30 Roger P. Jackson Closure for open ended medical implant
WO2002034150A2 (en) 2000-10-23 2002-05-02 Sdgi Holdings, Inc. Spinal implant connection assembly
US20020055740A1 (en) 2000-11-08 2002-05-09 The Cleveland Clinic Foundation Method and apparatus for correcting spinal deformity
US20020055741A1 (en) 1999-05-14 2002-05-09 Schlapfer Fridolin J. Bone fixation device with a rotation joint
US20020058942A1 (en) 2000-11-10 2002-05-16 Biedermann Motech Gmbh Bone screw
US20020068975A1 (en) 2000-06-23 2002-06-06 Teitelbaum George P. Formable orthopedic fixation system with cross linking
US6402757B1 (en) 1999-03-12 2002-06-11 Biomet, Inc. Cannulated fastener system for repair of bone fracture
US20020072750A1 (en) 2000-12-08 2002-06-13 Jackson Roger P. Set screw for medical implant with gripping side slots
US20020072751A1 (en) 2000-12-08 2002-06-13 Jackson Roger P. Closure plug for open-headed medical implant
US20020082603A1 (en) 2000-11-22 2002-06-27 Dixon Robert A. Method and device utilizing tapered screw shanks for spinal stabilization
US20020082602A1 (en) 2000-12-22 2002-06-27 Lutz Biedermann Fixing element
US20020087159A1 (en) 2000-12-29 2002-07-04 James Thomas Vertebral alignment system
US20020087161A1 (en) 2001-01-03 2002-07-04 Randall Bernard L. Cannulated locking screw system especially for transiliac implant
US20020091386A1 (en) 2001-01-05 2002-07-11 Greg Martin Pedicle screw assembly
US20020095153A1 (en) 2001-09-12 2002-07-18 Jones Robert J. Spinal rod translation instrument
WO2002054966A2 (en) 2001-01-12 2002-07-18 Depuy Acromed, Inc. Polyaxial screw with improved locking
US20020095154A1 (en) 2000-04-04 2002-07-18 Atkinson Robert E. Devices and methods for the treatment of spinal disorders
US20020095881A1 (en) 2001-01-22 2002-07-25 Shreiner Thomas A. Handrail and end member assembly
US20020103487A1 (en) 2001-01-30 2002-08-01 Errico Thomas J. Porous interbody fusion device having integrated polyaxial locking interference screws
JP2002221218A (en) 2002-02-21 2002-08-09 Maruzen Seisakusho:Kk Resin-made ball joint
US20020111627A1 (en) 2001-01-23 2002-08-15 Philippe Vincent-Prestigiacomo Position-adjustment system for an instrument for surgery of the spine
US20020111626A1 (en) 2001-02-15 2002-08-15 Ralph James D. Polyaxial pedicle screw having a rotating locking element
US20020116001A1 (en) 2001-02-17 2002-08-22 Bernd Schafer Bone screw
US6440133B1 (en) 2001-07-03 2002-08-27 Sdgi Holdings, Inc. Rod reducer instruments and methods
US20020120270A1 (en) 2001-02-28 2002-08-29 Hai Trieu Flexible systems for spinal stabilization and fixation
US6443956B1 (en) 2000-09-22 2002-09-03 Mekanika, Inc. Vertebral drill bit and inserter
US20020123752A1 (en) 1999-08-14 2002-09-05 Aesculap Ag & Co. Kg Bone screw
US20020133159A1 (en) 2000-12-08 2002-09-19 Jackson Roger P. Closure for open-headed medical implant
US20020133158A1 (en) 2001-03-15 2002-09-19 Saint Martin Pierre Henri Anchoring member with packer
US20020138076A1 (en) 2000-12-27 2002-09-26 Biederman Motech Gmbh Screw
US20020138077A1 (en) 2001-03-26 2002-09-26 Ferree Bret A. Spinal alignment apparatus and methods
US20020143330A1 (en) 2001-04-02 2002-10-03 Endius Incorporated Polyaxial transverse connector
US20020143338A1 (en) 2000-02-01 2002-10-03 Hand Innovations, Inc. Fixation system with multidirectional stabilization pegs
US20020143332A1 (en) 1997-05-15 2002-10-03 Chih-I Lin Clamping connector for spinal fixation systems
US20020143341A1 (en) 2001-03-27 2002-10-03 Lutz Biedermann Anchoring element
US20020143328A1 (en) 2001-03-29 2002-10-03 Endius Incorporated Apparatus for retaining bone portions in a desired spatial relationship
US6467958B1 (en) 1999-11-22 2002-10-22 Minebea Co., Ltd. Free spherical ball bearing
US6471703B1 (en) 1999-04-21 2002-10-29 Sdgi Holdings, Inc. Variable angle connection assembly for a spinal implant system
US20020161370A1 (en) 1999-07-07 2002-10-31 Robert Frigg Bone screw with two-part screw head
US6478798B1 (en) 2001-05-17 2002-11-12 Robert S. Howland Spinal fixation apparatus and methods for use
US6478797B1 (en) 2001-05-16 2002-11-12 Kamaljit S. Paul Spinal fixation device
US20020173791A1 (en) 2001-05-17 2002-11-21 Howland Robert S. Spinal fixation apparatus with enhanced axial support and methods for use
US6485492B1 (en) 1998-08-08 2002-11-26 Bernd Schafer Osteosynthesis device
US20020183747A1 (en) 2001-05-30 2002-12-05 Merries International Inc. Spinal fixation apparatus
US20020198526A1 (en) 2000-06-23 2002-12-26 Shaolian Samuel M. Formed in place fixation system with thermal acceleration
WO2002102259A2 (en) 2001-06-16 2002-12-27 Dilip Kumar Sengupta An assembly for the stabilisation of vertebral bodies of the spine
US20030004519A1 (en) 2001-06-29 2003-01-02 Ian Torode Tool and system for aligning and applying fastener to implanted anchor
WO2003007828A1 (en) 2001-07-18 2003-01-30 Frederic Fortin Flexible vertebral linking device
US20030023243A1 (en) 2001-07-27 2003-01-30 Biedermann Motech Gmbh Bone screw and fastening tool for same
US20030032957A1 (en) 2001-08-13 2003-02-13 Mckinley Laurence M. Vertebral alignment and fixation assembly
US6520962B1 (en) 2000-10-23 2003-02-18 Sdgi Holdings, Inc. Taper-locked adjustable connector
US6527804B1 (en) 1998-12-11 2003-03-04 Dimso (Distribution Medicale Du Sud-Quest) Intervertebral disk prosthesis
US6533786B1 (en) 1999-10-13 2003-03-18 Sdgi Holdings, Inc. Anterior cervical plating system
US20030055427A1 (en) 1999-12-01 2003-03-20 Henry Graf Intervertebral stabilising device
US20030055426A1 (en) 2001-09-14 2003-03-20 John Carbone Biased angulation bone fixation assembly
WO2003026523A1 (en) 2001-09-28 2003-04-03 Stephen Ritland Connection rod for screw or hook polyaxial system and method of use
US20030073995A1 (en) 2001-10-15 2003-04-17 Reed Gary Jack Orthopedic stabilization device and method
US20030073998A1 (en) 2000-08-01 2003-04-17 Endius Incorporated Method of securing vertebrae
US20030073996A1 (en) 2001-10-17 2003-04-17 Doubler Robert L. Split ring bone screw for a spinal fixation system
US20030078580A1 (en) 2000-04-28 2003-04-24 Hideo Shitoto Spinal-rod connecting apparatus and a connector thereof
US6554834B1 (en) 1999-10-07 2003-04-29 Stryker Spine Slotted head pedicle screw assembly
US6554831B1 (en) 2000-09-01 2003-04-29 Hopital Sainte-Justine Mobile dynamic system for treating spinal disorder
US20030083657A1 (en) 2001-10-30 2003-05-01 Drewry Troy D. Flexible spinal stabilization system and method
US20030083667A1 (en) 2001-10-31 2003-05-01 Ralph James D. Polyaxial drill guide
WO2003037199A1 (en) 2001-10-31 2003-05-08 U & I Co., Ltd. Bone fixation apparatus
US6562040B1 (en) 1996-10-24 2003-05-13 Spinal Concepts, Inc. Spinal fixation system
US20030093077A1 (en) 2000-04-19 2003-05-15 Schlapfer Fridolin J. Device for the articulated connection of two bodies
US6565565B1 (en) 1998-06-17 2003-05-20 Howmedica Osteonics Corp. Device for securing spinal rods
GB2382304A (en) 2001-10-10 2003-05-28 Dilip Kumar Sengupta An assembly for soft stabilisation of vertebral bodies of the spine
US20030100896A1 (en) 2001-11-27 2003-05-29 Lutz Biedermann Element with a shank and a holding element connected to it for connecting to a rod
US20030100904A1 (en) 2001-11-27 2003-05-29 Lutz Biedermann Locking device for securing a rod-shaped element in a holding element connected to a shank
US20030105460A1 (en) 2000-03-15 2003-06-05 Dennis Crandall Multidirectional pivoting bone screw and fixation system
WO2003047442A1 (en) 2001-12-07 2003-06-12 Mathys Medizinaltechnik Ag Damping element and device for stabilisation of adjacent vertebral bodies
US20030109880A1 (en) 2001-08-01 2003-06-12 Showa Ika Kohgyo Co., Ltd. Bone connector
US20030114852A1 (en) 2001-01-12 2003-06-19 Lutz Biedermann Connector element for bone rods or spinal rods
US6582466B1 (en) 1998-12-11 2003-06-24 Stryker Spine Intervertebral disc prosthesis with reduced friction
US20030120275A1 (en) 2000-07-31 2003-06-26 Lenke Lawrence G. Contourable spinal staple with centralized and unilateral prongs
US20030125749A1 (en) 2001-12-27 2003-07-03 Ethicon, Inc. Cannulated screw and associated driver system
US20030125741A1 (en) 2001-12-28 2003-07-03 Biedermann Motech Gmbh Locking device for securing a rod-shaped element in a holding element connected to a shank
US20030130659A1 (en) 2002-01-10 2003-07-10 Haider Thomas T. Orthopedic hook system
US20030130661A1 (en) 2002-01-08 2003-07-10 Osman Said G. Uni-directional dynamic spinal fixation device
US20030135210A1 (en) 2002-01-14 2003-07-17 Dixon Robert A. Dynamized vertebral stabilized using an outrigger implant
US20030135217A1 (en) 2002-01-14 2003-07-17 Buttermann Glenn Robin Apparatus and method for performing spinal surgery
US20030139745A1 (en) 2002-01-23 2003-07-24 Ashman Richard B. Variable angle spinal implant connection assembly
US20030149435A1 (en) 2002-02-01 2003-08-07 Baynham Bret O?Apos;Neil Polyaxial modular skeletal hook
US20030149431A1 (en) 2002-02-01 2003-08-07 Varieur Michael S. Closure system for spinal fixation instrumentation
US20030149432A1 (en) 2000-08-24 2003-08-07 Robert Frigg Apparatus for connecting a bone fastener to a longitudinal rod
US20030153912A1 (en) 2000-06-30 2003-08-14 Henry Graf Intervertebral connecting device
US20030153920A1 (en) 2002-02-13 2003-08-14 Ralph James D. Longitudinal plate assembly having an adjustable length
US20030153911A1 (en) 2002-02-13 2003-08-14 Endius Incorporated Apparatus for connecting a longitudinal member to a bone portion
WO2003068088A1 (en) 2002-02-13 2003-08-21 Cross Medical Products, Inc. Posterior polyaxial system for the spine
US20030163133A1 (en) 2002-02-13 2003-08-28 Moti Altarac Posterior rod system
US6613050B1 (en) 1996-10-24 2003-09-02 Spinal Concepts, Inc. Method and apparatus for spinal fixation
US20030167058A1 (en) 2002-03-01 2003-09-04 Endius Incorporated Apparatus for connecting a longitudinal member to a bone portion
US6616667B1 (en) 1999-11-25 2003-09-09 Sulzer Orthopedics, Ltd. Surgical instrument for tensioning a cable-like tensioning element
US20030171749A1 (en) 2000-07-25 2003-09-11 Regis Le Couedic Semirigid linking piece for stabilizing the spine
US20030176863A1 (en) 2000-09-22 2003-09-18 Showa Ika Kohgyo Co., Ltd. Rod for cervical vertebra and connecting system thereof
US20030181913A1 (en) 2000-10-05 2003-09-25 The Cleveland Clinic Foundation Apparatus for implantation into bone
US20030187433A1 (en) 2002-01-17 2003-10-02 A-Spine Inc. Rotary device for fixing vertebrae under treatment
US20030187434A1 (en) 2002-01-24 2003-10-02 A-Spine Inc. Rotary device for fixing spinal column under treatment
US20030191470A1 (en) 2002-04-05 2003-10-09 Stephen Ritland Dynamic fixation device and method of use
WO2003084415A1 (en) 2002-04-04 2003-10-16 Kiscomedica Spinal osteosynthesis system
US20030199873A1 (en) 2002-04-18 2003-10-23 Marc Richelsoph Screw and rod fixation assembly and device
US20030199872A1 (en) 2002-04-17 2003-10-23 Stryker Spine Rod persuader
US20030208204A1 (en) 2001-04-17 2003-11-06 Bailey Kirk J. Anterior cervical plating system
US20030212398A1 (en) 2002-05-09 2003-11-13 Jackson Roger P. Multiple diameter tangential set screw
US6648885B1 (en) 1998-11-12 2003-11-18 Sdgi Holdings, Inc. Device for the osteosynthesis of a spinal segment
US6648888B1 (en) 2002-09-06 2003-11-18 Endius Incorporated Surgical instrument for moving a vertebra
WO2003094699A2 (en) 2002-05-08 2003-11-20 Stephen Ritland Dynamic fixation device and method of use
US20030216735A1 (en) 2002-05-15 2003-11-20 Moti Altarac Variable locking spinal screw having a knurled collar
US6652526B1 (en) 2001-10-05 2003-11-25 Ruben P. Arafiles Spinal stabilization rod fastener
US6652765B1 (en) 1994-11-30 2003-11-25 Implant Innovations, Inc. Implant surface preparation
US20030220643A1 (en) 2002-05-24 2003-11-27 Ferree Bret A. Devices to prevent spinal extension
US20030220642A1 (en) 2002-05-21 2003-11-27 Stefan Freudiger Elastic stabilization system for vertebral columns
US6656179B1 (en) 1999-10-18 2003-12-02 Bernd Schaefer Bone plate
US20030225408A1 (en) 2002-06-04 2003-12-04 Howmedica Osteonics Corp. Apparatus for securing a spinal rod system
US20030229345A1 (en) 2002-06-11 2003-12-11 Stahurski Terrence M. Connector assembly with multidimensional accommodation and associated method
US6663632B1 (en) 1998-05-19 2003-12-16 Synthes (U.S.A.) Osteosynthetic implant with an embedded hinge joint
US20030236529A1 (en) 2002-06-24 2003-12-25 Endius Incorporated Surgical instrument for moving vertebrae
US6673073B1 (en) 1999-11-29 2004-01-06 Schaefer Bernd Transverse connector
US20040006342A1 (en) 2002-02-13 2004-01-08 Moti Altarac Posterior polyaxial plate system for the spine
US6676661B1 (en) 1999-07-23 2004-01-13 Antonio Martin Benlloch Multiaxial connector for spinal implant
DE10236691A1 (en) 2002-08-09 2004-02-26 Biedermann Motech Gmbh A dynamic stabilization device for bones, in particular for vertebrae
US20040039384A1 (en) 2002-08-21 2004-02-26 Boehm Frank H. Device and method for pertcutaneous placement of lumbar pedicle screws and connecting rods
US20040039385A1 (en) 2000-12-07 2004-02-26 Keyvan Mazda Device for fixing a rod and a spherical symmetry screw head
US20040049189A1 (en) 2000-07-25 2004-03-11 Regis Le Couedic Flexible linking piece for stabilising the spine
US6712818B1 (en) 1997-02-11 2004-03-30 Gary K. Michelson Method for connecting adjacent vertebral bodies of a human spine with a plating system
US6716247B2 (en) 2000-02-04 2004-04-06 Gary K. Michelson Expandable push-in interbody spinal fusion implant
US6716214B1 (en) 2003-06-18 2004-04-06 Roger P. Jackson Polyaxial bone screw with spline capture connection
US20040073215A1 (en) 2002-10-14 2004-04-15 Scient ' X Dynamic intervertebral connection device with controlled multidirectional deflection
US20040073218A1 (en) 2002-10-15 2004-04-15 The University Of North Carolina At Chapel Hill Multi-angular fastening apparatus and method for surgical bone screw/plate systems
US20040078082A1 (en) 2001-02-28 2004-04-22 Lange Eric C. Flexible spine stabilization systems
US20040078051A1 (en) 1998-08-20 2004-04-22 Davison Thomas W. Cannula for receiving surgical instruments
FR2846223A1 (en) 2002-10-24 2004-04-30 Frederic Fortin Flexible intervertebral connection device has two screws and connection acting as damper with three degrees of freedom and heads with radii at ends enabling rotation in connection opening
US20040087950A1 (en) 2000-06-23 2004-05-06 Teitelbaum George P. Percutaneous vertebral fusion system
US20040087949A1 (en) 2002-10-31 2004-05-06 Bono Frank S. Snap-in washers and assemblies thereof
US20040087952A1 (en) 2002-10-31 2004-05-06 Amie Borgstrom Universal polyaxial washer assemblies
US20040092934A1 (en) 2002-04-24 2004-05-13 Howland Robert S. Multi selective axis spinal fixation system
US20040092938A1 (en) 2002-11-08 2004-05-13 Scient ' X Clamping nut for an osteosynthesis device
US20040097933A1 (en) 2002-11-19 2004-05-20 Rodolphe Lourdel Vertebral anchoring device and its blocking device on a polyaxial screw
WO2004041100A1 (en) 2002-10-30 2004-05-21 Spinal Concepts, Inc. Spinal stabilization system insertion and methods
US6743231B1 (en) 2000-10-02 2004-06-01 Sulzer Spine-Tech Inc. Temporary spinal fixation apparatuses and methods
US20040106925A1 (en) 2002-11-25 2004-06-03 Culbert Brad S. Soft tissue anchor and method of using same
US20040111091A1 (en) 2002-05-21 2004-06-10 James Ogilvie Reduction cable and bone anchor
US20040122442A1 (en) 2002-12-20 2004-06-24 High Plains Technology Group, Llc Bone screw fastener and apparatus for inserting and removing same
US20040127904A1 (en) 2002-12-31 2004-07-01 Konieczynski David D. Bone plate and resilient screw system allowing bi-directional assembly
US20040133207A1 (en) 2002-10-11 2004-07-08 Abdou M. Samy Distraction screw for skeletal surgery and method of use
US20040138660A1 (en) 2003-01-10 2004-07-15 Serhan Hassan A. Locking cap assembly for spinal fixation instrumentation
US20040147929A1 (en) 2002-12-20 2004-07-29 Biedermann Motech Gmbh Tubular element for an implant for use in spine or bone surgery and implant having such an element
US20040147937A1 (en) 2003-01-24 2004-07-29 Depuy Spine, Inc. Spinal rod approximators
US20040147928A1 (en) 2002-10-30 2004-07-29 Landry Michael E. Spinal stabilization system using flexible members
US20040158258A1 (en) 2003-02-12 2004-08-12 Bonati Alfred O. Method for removing orthopaedic hardware
US20040158245A1 (en) 2003-02-11 2004-08-12 Chin Kingsley Richard Apparatus and method for connecting spinal vertebrae
US20040158247A1 (en) 2003-02-07 2004-08-12 Arthit Sitiso Polyaxial pedicle screw system
US6778861B1 (en) 1999-06-23 2004-08-17 Geot Gesellschaft Fur Elektro-Osteo-Therapie G.M.B.H. Bone screw comprising a device for electrostimulation
US20040167525A1 (en) 2002-09-06 2004-08-26 Jackson Roger P. Anti-splay medical implant closure with multi-stepped removal counterbore
US20040167523A1 (en) 2000-12-08 2004-08-26 Jackson Roger P. Closure for rod receiving orthopedic implant having a pair of spaced apertures for removal
US20040172031A1 (en) 2003-02-27 2004-09-02 Reinhard Rubecamp Compression bone screw and screwdriver blade therefor
US20040176776A1 (en) 2003-03-06 2004-09-09 Rafail Zubok Instrumentation and methods for use in implanting a cervical disc replacement device
WO2004075778A2 (en) 2003-02-25 2004-09-10 Stephen Ritland Adjustable rod and connector device and method of use
US20040186475A1 (en) 2003-03-20 2004-09-23 Falahee Mark H. Posterior spinal reconstruction system
US20040186473A1 (en) 2003-03-21 2004-09-23 Cournoyer John R. Spinal fixation devices of improved strength and rigidity
US20040186474A1 (en) 2002-12-02 2004-09-23 Biedermann Motech Gmbh Implant having a shaft and a holding element connected therewith for connecting with a rod
WO2004089245A2 (en) 2003-04-04 2004-10-21 Theken Surgical, Llc Bone anchor
US20040210216A1 (en) 2003-04-17 2004-10-21 Farris Robert A Spinal fixation system and method
US20040210227A1 (en) 2003-02-03 2004-10-21 Kinetikos Medical, Inc. Compression screw apparatuses, systems and methods
US20040215190A1 (en) 2003-04-25 2004-10-28 Nguyen Thanh V. System and method for minimally invasive posterior fixation
US20040215191A1 (en) 2003-04-25 2004-10-28 Kitchen Michael S. Spinal curvature correction device
US20040220671A1 (en) 2001-10-01 2004-11-04 Ralph James D Intervertebral spacer device utilizing a spirally slotted belleville washer and a rotational mounting
US20040220567A1 (en) 2003-02-12 2004-11-04 Sdgi Holdings, Inc. Instruments and methods for aligning implants for insertion
US20040225289A1 (en) 2003-05-07 2004-11-11 Biedermann Motech Gmbh Dynamic anchoring device and dynamic stabilization device for bones, in particular for vertebrae, with such an anchoring device
WO2004098452A2 (en) 2003-05-02 2004-11-18 Yale University Dynamic spine stabilizer
US20040230100A1 (en) 2003-05-16 2004-11-18 Shluzas Alan E. Access device for minimally invasive surgery
US20040236328A1 (en) 2003-05-23 2004-11-25 Paul David C. Spine stabilization system
US20040236330A1 (en) 2003-05-22 2004-11-25 Thomas Purcell Variable angle spinal screw assembly
US20040249378A1 (en) 2001-10-04 2004-12-09 Saint Martin Pierre Henri Spinal osteosynthesis assembly comprising the head of an anchoring member and a tool for fixing said head
WO2004105577A2 (en) 2003-05-23 2004-12-09 Globus Medical, Inc. Spine stabilization system
US20040254574A1 (en) 2003-06-11 2004-12-16 Morrison Matthew M. Variable offset spinal fixation system
WO2004107997A2 (en) 2003-05-28 2004-12-16 Spinevision Connecting device for spinal osteosynthesis
US20040260283A1 (en) 2003-06-19 2004-12-23 Shing-Cheng Wu Multi-axis spinal fixation device
US20040267264A1 (en) 2003-06-27 2004-12-30 Konieczynski David D. Polyaxial bone screw
FR2856578A1 (en) 2003-06-27 2004-12-31 Medicrea Vertebral osteosynthesis material, has screw with deformable elastic circular wall interposed between connection piece and threaded distal screw body, where wall permits mobility of piece with respect to body
WO2005000137A1 (en) 2003-06-27 2005-01-06 Medicrea Technologies Vertebral osteosynthesis equipment
WO2005000136A1 (en) 2003-06-27 2005-01-06 Medicrea Technologies Vertebral osteosynthesis equipment
US20050010219A1 (en) 2003-07-07 2005-01-13 Dalton Brain E. Bone fixation assembly and method of securement
FR2857850A1 (en) 2003-06-27 2005-01-28 Medicrea International Vertebral osteosynthesis material for immobilizing vertebras, has flange located such that coupling unit coupling connection rod and pedicle screw, allows articulated movement of proximal slug with respect to base part
US20050027296A1 (en) 2002-06-24 2005-02-03 Jeffrey Thramann Cervical plate with backout protection
US20050033436A1 (en) 2001-12-31 2005-02-10 Synthes U.S.A. Device for a ball-and-socket joint type connection of two members
US20050033298A1 (en) 2001-10-31 2005-02-10 Ortho Development Corporation Cervical plate for stabilizing the human spine
US20050033439A1 (en) 2003-08-05 2005-02-10 Charles Gordon Artificial functional spinal unit assemblies
WO2005013839A2 (en) 2003-08-08 2005-02-17 Sdgi Holdings, Inc. Implants formed of shape memory polymeric material for spinal fixation
US20050038433A1 (en) 2000-10-23 2005-02-17 Stewart Young Multi-planar adjustable connector
US20050038430A1 (en) 2003-08-11 2005-02-17 Mckinley Laurence M. Low profile vertebral alignment and fixation assembly
US20050049588A1 (en) 2003-08-28 2005-03-03 Jackson Roger P. Polyaxial bone screw with split retainer ring
WO2005018466A2 (en) 2003-08-26 2005-03-03 Endius, Inc. Access systems and methods for minimally invasive surgery
WO2005018471A1 (en) 2003-08-20 2005-03-03 Sdgi Holdings, Inc. Multi-axial orthopedic device and system, e.g. for spinal surgery
WO2005020829A1 (en) 2003-09-01 2005-03-10 Ldr Medical Osseous anchoring implant with a polyaxial head and method for installing the implant
US20050055026A1 (en) 2002-10-02 2005-03-10 Biedermann Motech Gmbh Bone anchoring element
US20050065515A1 (en) 2003-09-24 2005-03-24 Tae-Ahn Jahng Marking and guidance method and system for flexible fixation of a spine
US20050065517A1 (en) 2003-09-24 2005-03-24 Chin Kingsley Richard Methods and devices for improving percutaneous access in minimally invasive surgeries
US6872208B1 (en) 2000-10-06 2005-03-29 Spinal Concepts, Inc. Adjustable transverse connector
US20050070899A1 (en) 2003-09-26 2005-03-31 Doubler Robert L. Polyaxial bone screw with torqueless fastening
US20050070901A1 (en) 2003-09-26 2005-03-31 Stryker Spine Bone fixation assembly and method
WO2005030068A1 (en) 2003-09-29 2005-04-07 Synthes Gmbh Dynamic damping element for two bones
US20050080415A1 (en) 2003-10-14 2005-04-14 Keyer Thomas R. Polyaxial bone anchor and method of spinal fixation
US20050085815A1 (en) 2003-10-17 2005-04-21 Biedermann Motech Gmbh Rod-shaped implant element for application in spine surgery or trauma surgery, stabilization apparatus comprising said rod-shaped implant element, and production method for the rod-shaped implant element
US20050085816A1 (en) 2001-06-04 2005-04-21 Michelson Gary K. Method for installation of dynamic anterior cervical plate system having moveable segments
US20050085812A1 (en) 2003-10-21 2005-04-21 Sherman Michael C. Apparatus and method for providing dynamizable translations to orthopedic implants
US20050085813A1 (en) 2003-10-21 2005-04-21 Innovative Spinal Technologies System and method for stabilizing of internal structures
US20050090821A1 (en) 2003-10-22 2005-04-28 Gregory Berrevoets Crosslink for securing spinal rods
US20050096654A1 (en) 2003-11-03 2005-05-05 A-Spine Holding Group Corp. Plug-type device for retrieving spinal column under treatment
US20050096652A1 (en) 2003-10-31 2005-05-05 Burton Charles V. Integral flexible spine stabilization device and method
US20050107788A1 (en) 2001-12-12 2005-05-19 Jacques Beaurain Implant for osseous anchoring with polyaxial head
US6896677B1 (en) 2003-12-11 2005-05-24 A-Spine Holding Group Corp. Rotary device for retrieving spinal column under treatment
US20050113927A1 (en) 2003-11-25 2005-05-26 Malek Michel H. Spinal stabilization systems
US20050124991A1 (en) 2003-12-05 2005-06-09 Tae-Ahn Jahng Method and apparatus for flexible fixation of a spine
US20050131419A1 (en) 2003-12-16 2005-06-16 Mccord David Pivoting implant holder
US20050131404A1 (en) 2002-02-25 2005-06-16 Keyvan Mazda Device for the connection between a shaft and a screw head with spherical symmetry
US20050131406A1 (en) 2003-12-15 2005-06-16 Archus Orthopedics, Inc. Polyaxial adjustment of facet joint prostheses
US20050131413A1 (en) 2003-06-20 2005-06-16 O'driscoll Shawn W. Bone plate with interference fit screw
US20050131408A1 (en) 2003-12-16 2005-06-16 Sicvol Christopher W. Percutaneous access devices and bone anchor assemblies
US20050131422A1 (en) 2003-12-16 2005-06-16 Anderson David G. Methods and devices for spinal fixation element placement
US20050131405A1 (en) 2003-12-10 2005-06-16 Sdgi Holdings, Inc. Method and apparatus for replacing the function of facet joints
US20050131407A1 (en) 2003-12-16 2005-06-16 Sicvol Christopher W. Flexible spinal fixation elements
US20050137594A1 (en) 2002-02-04 2005-06-23 Doubler Robert L. Spinal fixation assembly
US20050137597A1 (en) 2003-12-22 2005-06-23 Life Spine Dynamic cervical plates and cervical plate constructs
US20050141986A1 (en) 2003-10-24 2005-06-30 Flesher Robert W. Tamper-resistant fastener and method and tool for use with same
US20050143823A1 (en) 2003-12-31 2005-06-30 Boyd Lawrence M. Dynamic spinal stabilization system
US20050143737A1 (en) 2003-12-31 2005-06-30 John Pafford Dynamic spinal stabilization system
US20050149053A1 (en) 2003-12-17 2005-07-07 Varieur Michael S. Instruments and methods for bone anchor engagement and spinal rod reduction
US20050154389A1 (en) 2003-12-16 2005-07-14 Depuy Spine, Inc. Methods and devices for minimally invasive spinal fixation element placement
US20050154390A1 (en) 2003-11-07 2005-07-14 Lutz Biedermann Stabilization device for bones comprising a spring element and manufacturing method for said spring element
US20050154391A1 (en) 2003-12-30 2005-07-14 Thomas Doherty Bone anchor assemblies
US20050159750A1 (en) 2003-12-30 2005-07-21 Thomas Doherty Bone anchor assemblies and methods of manufacturing bone anchor assemblies
US20050165400A1 (en) 2004-01-26 2005-07-28 Fernandez Alberto A. Variable angle locked bone fixation system
FR2865377A1 (en) 2004-01-27 2005-07-29 Medicrea Vertebral osteosynthesis equipment for use in correcting position of vertebrae has polyaxial anchor with nut that is elastically deformable and is interposed between the connecting portion and a bearing surface of the base
FR2865375A1 (en) 2004-01-27 2005-07-29 Medicrea International Vertebral osteosynthesis material for scoliosis treatment, has connection rods connected to pedicle screws, where one screw is of polyaxial type and has flexible extended unit connecting threaded pin and base piece fixed to vertebrate
FR2865373A1 (en) 2004-01-27 2005-07-29 Medicrea International Vertebral osteosynthesis material for use in treatment of scoliosis, has polyaxial pedicle screw with proximal threaded pin having distal ring engaged in fixed ring of distal threaded screw body that is fixed to vertebrae
US20050171540A1 (en) 2004-01-30 2005-08-04 Roy Lim Instruments and methods for minimally invasive spinal stabilization
US20050171543A1 (en) 2003-05-02 2005-08-04 Timm Jens P. Spine stabilization systems and associated devices, assemblies and methods
US20050177166A1 (en) 2003-05-02 2005-08-11 Timm Jens P. Mounting mechanisms for pedicle screws and related assemblies
US20050182410A1 (en) 2002-09-06 2005-08-18 Jackson Roger P. Helical guide and advancement flange with radially loaded lip
US20050182401A1 (en) 2003-05-02 2005-08-18 Timm Jens P. Systems and methods for spine stabilization including a dynamic junction
US20050187548A1 (en) 2004-01-13 2005-08-25 Butler Michael S. Pedicle screw constructs for spine fixation systems
US20050187555A1 (en) 2004-02-24 2005-08-25 Biedermann Motech Gmbh Bone anchoring element
US20050192580A1 (en) 2004-02-26 2005-09-01 Dalton Brian E. Polyaxial locking screw plate assembly
US20050192572A1 (en) 2004-02-27 2005-09-01 Custom Spine, Inc. Medialised rod pedicle screw assembly
US20050192573A1 (en) 2004-02-27 2005-09-01 Custom Spine, Inc. Biased angle polyaxial pedicle screw assembly
US20050192579A1 (en) 2004-02-27 2005-09-01 Jackson Roger P. Orthopedic implant rod reduction tool set and method
US20050192571A1 (en) 2004-02-27 2005-09-01 Custom Spine, Inc. Polyaxial pedicle screw assembly
US20050192589A1 (en) 2004-02-06 2005-09-01 Douglas Raymond Devices and methods for inserting a spinal fixation element
EP1570795A1 (en) 2004-03-05 2005-09-07 BIEDERMANN MOTECH GmbH Apparatus for dynamic stabilisation of the spine or bones and rod-like element for same
US20050203516A1 (en) 2004-03-03 2005-09-15 Biedermann Motech Gmbh Anchoring element and stabilization device for the dynamic stabilization of vertebrae or bones using such anchoring elements
US20050203511A1 (en) 2004-03-02 2005-09-15 Wilson-Macdonald James Orthopaedics device and system
US20050203513A1 (en) 2003-09-24 2005-09-15 Tae-Ahn Jahng Spinal stabilization device
US20050203514A1 (en) 2003-09-24 2005-09-15 Tae-Ahn Jahng Adjustable spinal stabilization system
US20050203519A1 (en) 2004-03-09 2005-09-15 Jurgen Harms Rod-like element for application in spinal or trauma surgery, and stabilization device with such a rod-like element
WO2005087121A1 (en) 2004-03-02 2005-09-22 Spinevision Dynamic linking element for a spinal attachment system, and spinal attachment system including said linking element
US20050216003A1 (en) 2004-03-03 2005-09-29 Biedermann Motech Gmbh Bone anchoring element for anchoring in a bone or vertebra, and stabilization device with such a bone anchoring element
US20050216000A1 (en) 2004-03-22 2005-09-29 Innovative Spinal Technologies Closure member for a medical implant device
US20050216001A1 (en) 2004-03-23 2005-09-29 Stryker Spine Sphere and bone plate
US20050215999A1 (en) 2004-03-19 2005-09-29 Depuy Spine, Inc. Spinal fixation element and methods
US20050228326A1 (en) 2004-03-31 2005-10-13 Depuy Spine, Inc. Head-to-head connector spinal fixation system
US20050228400A1 (en) 2004-03-31 2005-10-13 Chao Nam T Instrument for inserting, adjusting and removing pedicle screws and other orthopedic implants
US20050228501A1 (en) 2003-09-15 2005-10-13 Sdgi Holdings, Inc. Spinal implant system
US20050228385A1 (en) 2004-04-08 2005-10-13 Globus Medical Inc. Polyaxial screw
US20050234450A1 (en) 2004-04-15 2005-10-20 Barker B T Transfer ring for offset tapered 3D connector
US20050234454A1 (en) 2003-09-24 2005-10-20 Chin Kingsley R Multi-axial screw with a spherical landing
US20050234451A1 (en) 2004-04-16 2005-10-20 Markworth Aaron D Pedicle screw assembly
US20050234456A1 (en) 2004-04-16 2005-10-20 Malandain Hugues F Plate system for minimally invasive support of the spine
US20050234459A1 (en) 2002-10-10 2005-10-20 U.S. Spinal Technologies, Llc Bone fixation implant system and method
US20050234452A1 (en) 2004-04-16 2005-10-20 Malandain Hugues F Subcutaneous support
US20050240183A1 (en) 2001-10-03 2005-10-27 Vaughan Medical Technologies, Inc. Vertebral stabilization assembly and method
US20050240181A1 (en) 2004-04-23 2005-10-27 Boomer Mark C Spinal implant connectors
US20050245930A1 (en) 2003-05-02 2005-11-03 Timm Jens P Dynamic spine stabilizer
WO2005102195A1 (en) 2004-04-20 2005-11-03 Allez Spine, Llc Pedicle screw assembly
US20050251137A1 (en) 2003-12-12 2005-11-10 Kinetikos Medical Inc. Apparatuses, systems and methods for bone fixation
US20050251139A1 (en) 2004-05-07 2005-11-10 Roh Jeffrey S Systems and methods that facilitate minimally invasive spine surgery
WO2005104969A1 (en) 2004-04-28 2005-11-10 Synthes Gmbh Device for dynamic bone stabilization
US20050260058A1 (en) 2004-05-18 2005-11-24 Cassagne Alphonse G Iii Hex fastener
US20050267477A1 (en) 2000-06-06 2005-12-01 Jackson Roger P Removable medical implant closure
US20050267470A1 (en) 2004-05-13 2005-12-01 Mcbride Duncan Q Spinal stabilization system to flexibly connect vertebrae
US20050267471A1 (en) 2004-05-04 2005-12-01 Lutz Biedermann Flexible space holder
US20050267472A1 (en) 2002-03-27 2005-12-01 Biedermann Motech Gmbh Bone anchoring device for stabilising bone segments and seat part of a bone anchoring device
US20050273101A1 (en) 2004-05-28 2005-12-08 Aesculap Ag & Co. Kg Bone screw and osteosynthesis device
US20050273099A1 (en) 2002-10-07 2005-12-08 Christian Baccelli Plate fixing system
US20050277927A1 (en) 2004-06-14 2005-12-15 Guenther Kevin V Fastening system for spinal stabilization system
US20050277922A1 (en) 2004-06-09 2005-12-15 Trieu Hai H Systems and methods for flexible spinal stabilization
US20050277928A1 (en) 2004-06-14 2005-12-15 Boschert Paul F Spinal implant fixation assembly
US20050277934A1 (en) 2004-06-10 2005-12-15 Vardiman Arnold B Rod delivery device and method
US20050277925A1 (en) 2004-06-09 2005-12-15 Mujwid James R Spinal fixation device with internal drive structure
US20050277931A1 (en) 2004-06-09 2005-12-15 Spinal Generations, Llc Spinal fixation system
US20050278023A1 (en) 2004-06-10 2005-12-15 Zwirkoski Paul A Method and apparatus for filling a cavity
US20050277923A1 (en) 2004-06-09 2005-12-15 Sweeney Patrick J Spinal fixation system
US20050277919A1 (en) 2004-05-28 2005-12-15 Depuy Spine, Inc. Anchoring systems and methods for correcting spinal deformities
US20050283244A1 (en) 2003-08-05 2005-12-22 Gordon Charles R Method of insertion of an expandable intervertebral implant
US20050283152A1 (en) 2004-06-17 2005-12-22 Lindemann Gary S Method and apparatus for retaining screws in a plate
US20050283238A1 (en) 1999-10-22 2005-12-22 Reiley Mark A Facet arthroplasty devices and methods
US20050283157A1 (en) 2004-06-17 2005-12-22 Coates Bradley J Multi-axial bone attachment assembly
US20050288669A1 (en) 2004-06-14 2005-12-29 Abdou M S Occipito fixation system and method of use
US20050288670A1 (en) 2004-06-23 2005-12-29 Panjabi Manohar M Dynamic stabilization device including overhanging stabilizing member
US20050288673A1 (en) 2003-12-19 2005-12-29 Adrian Catbagan Low profile anterior thoracic and thoracolumbar plate
US20060004359A1 (en) 2002-09-04 2006-01-05 Aesculap Ag & Co. Kg Orthopedic fixation device
US20060004363A1 (en) 2004-05-25 2006-01-05 University Of Utah Research Foundation Occipitocervical plate
US20060004360A1 (en) 2002-09-04 2006-01-05 Aesculap Ag & Co. Kg Orthopedic fixation device
US20060009770A1 (en) 2003-11-18 2006-01-12 Andrew Speirs Bone plate and bone screw system
US20060009767A1 (en) 2004-07-02 2006-01-12 Kiester P D Expandable rod system to treat scoliosis and method of using the same
US20060009780A1 (en) 1997-09-24 2006-01-12 Foley Kevin T Percutaneous registration apparatus and method for use in computer-assisted surgical navigation
US20060015099A1 (en) 2004-07-14 2006-01-19 Cannon Bradley J Force diffusion spinal hook
WO2006005198A1 (en) 2004-07-12 2006-01-19 Synthes Gmbh Device for the dynamic fixation of bones
US20060025768A1 (en) 2003-07-03 2006-02-02 Andy Iott Top loading spinal fixation device and instruments for loading and handling the same
US20060025767A1 (en) 2002-11-04 2006-02-02 Khalili Farid B Orthopedic rod system
US20060025770A1 (en) 2002-12-06 2006-02-02 Fridolin Schlapfer Device for stabilizing bones
US20060025771A1 (en) 2000-08-23 2006-02-02 Jackson Roger P Helical reverse angle guide and advancement structure with break-off extensions
US20060030850A1 (en) 2004-07-23 2006-02-09 Keegan Thomas E Methods and apparatuses for percutaneous implant delivery
US20060036243A1 (en) 2004-08-13 2006-02-16 Ricardo Sasso Replacement facet joint and method
US20060036254A1 (en) 2004-08-10 2006-02-16 Roy Lim Reducing instrument for spinal surgery
US20060036259A1 (en) 2004-08-03 2006-02-16 Carl Allen L Spine treatment devices and methods
US20060036242A1 (en) 2004-08-10 2006-02-16 Nilsson C M Screw and rod fixation system
US20060036246A1 (en) 2004-08-03 2006-02-16 Carl Allen L Device and method for correcting a spinal deformity
US20060036240A1 (en) 2004-08-09 2006-02-16 Innovative Spinal Technologies System and method for dynamic skeletal stabilization
US20060036323A1 (en) 2004-08-03 2006-02-16 Carl Alan L Facet device and method
US20060036252A1 (en) 2004-08-12 2006-02-16 Baynham Bret O Polyaxial screw
US20060036244A1 (en) 2003-10-21 2006-02-16 Innovative Spinal Technologies Implant assembly and method for use in an internal structure stabilization system
US7001389B1 (en) 2002-07-05 2006-02-21 Navarro Richard R Fixed and variable locking fixation assembly
WO2006020530A2 (en) 2004-08-09 2006-02-23 Innovative Spinal Technologies System and method for dynamic skeletal stabilization
US20060052786A1 (en) 2004-08-17 2006-03-09 Zimmer Spine, Inc. Polyaxial device for spine stabilization during osteosynthesis
US20060052783A1 (en) 2004-08-17 2006-03-09 Dant Jack A Polyaxial device for spine stabilization during osteosynthesis
US20060052784A1 (en) 2004-08-17 2006-03-09 Zimmer Spine, Inc. Polyaxial device for spine stabilization during osteosynthesis
US20060052780A1 (en) 2001-02-15 2006-03-09 Spinecore, Inc. Wedge plate inserter/impactor and related methods for use in implanting an artificial intervertebral disc
US20060058788A1 (en) 2004-08-27 2006-03-16 Hammer Michael A Multi-axial connection system
US20060058790A1 (en) 2004-08-03 2006-03-16 Carl Allen L Spinous process reinforcement device and method
US20060064092A1 (en) 2001-05-17 2006-03-23 Howland Robert S Selective axis serrated rod low profile spinal fixation system
US20060064090A1 (en) 2004-09-22 2006-03-23 Kyung-Woo Park Bio-flexible spinal fixation apparatus with shape memory alloy
US20060064091A1 (en) 2004-03-31 2006-03-23 Depuy Spine, Inc. Rod attachment for head to head cross connector
US20060069390A1 (en) 2003-04-15 2006-03-30 Robert Frigg Bone fixation device
US20060074419A1 (en) 2004-10-05 2006-04-06 Taylor Harold S Spinal implants with multi-axial anchor assembly and methods
US20060074418A1 (en) 2004-09-24 2006-04-06 Jackson Roger P Spinal fixation tool set and method for rod reduction and fastener insertion
US20060079896A1 (en) 2004-09-30 2006-04-13 Depuy Spine, Inc. Methods and devices for posterior stabilization
US20060079894A1 (en) 2003-10-21 2006-04-13 Innovative Spinal Technologies Connector transfer tool for internal structure stabilization systems
US20060079898A1 (en) 2003-10-23 2006-04-13 Trans1 Inc. Spinal motion preservation assemblies
US20060079895A1 (en) 2004-09-30 2006-04-13 Mcleer Thomas J Methods and devices for improved bonding of devices to bone
US20060084985A1 (en) 2004-10-20 2006-04-20 The Board Of Trustees Of The Leland Stanford Junior University Systems and methods for posterior dynamic stabilization of the spine
US20060084988A1 (en) 2004-10-20 2006-04-20 The Board Of Trustees Of The Leland Stanford Junior University Systems and methods for posterior dynamic stabilization of the spine
US20060084977A1 (en) 2004-09-29 2006-04-20 The Cleveland Clinic Foundation Minimally invasive method and apparatus for fusing adjacent vertebrae
US20060084984A1 (en) 2004-10-20 2006-04-20 The Board Of Trustees For The Leland Stanford Junior University Systems and methods for posterior dynamic stabilization of the spine
US20060084981A1 (en) 2004-10-20 2006-04-20 Endius Incorporated Apparatus for connecting a longitudinal member to a bone portion
US20060085069A1 (en) 2004-10-20 2006-04-20 The Board Of Trustees Of The Leland Stanford Junior University Systems and methods for posterior dynamic stabilization of the spine
US20060084991A1 (en) 2004-09-30 2006-04-20 Depuy Spine, Inc. Posterior dynamic stabilizer devices
US20060084983A1 (en) 2004-10-20 2006-04-20 The Board Of Trustees Of The Leland Stanford Junior University Systems and methods for posterior dynamic stabilization of the spine
US20060084980A1 (en) 2004-10-05 2006-04-20 Melkent Anthony J Spinal implants and methods with extended multi-axial anchor assemblies
US20060085070A1 (en) 2004-10-20 2006-04-20 Vertiflex, Inc. Systems and methods for posterior dynamic stabilization of the spine
US20060084989A1 (en) 2004-10-05 2006-04-20 Sdgi Holdings, Inc. Multi-axial anchor assemblies for spinal implants and methods
US20060089643A1 (en) 2004-06-09 2006-04-27 Mujwid James R Spinal fixation device
US20060089644A1 (en) 2004-10-27 2006-04-27 Felix Brent A Spinal stabilizing system
US20060089645A1 (en) 2004-10-26 2006-04-27 Concept Matrix, Llc Internal fixation system for spine surgery
US20060095038A1 (en) 2004-11-03 2006-05-04 Jackson Roger P Polyaxial bone screw
US20060095035A1 (en) 2004-11-03 2006-05-04 Jones Robert J Instruments and methods for reduction of vertebral bodies
WO2006047711A2 (en) 2004-10-25 2006-05-04 Alphaspine, Inc. Pedicle screw systems and methods
US20060095037A1 (en) 2004-10-29 2006-05-04 Jones Bryan S Connector assemblies for connecting a bone anchor to a fixation element
US20060100622A1 (en) 2004-11-10 2006-05-11 Jackson Roger P Polyaxial bone screw with helically wound capture connection
US20060106394A1 (en) 2004-11-16 2006-05-18 Innovative Spinal Technologies, Inc. Off-axis anchor guidance system
US20060106381A1 (en) 2004-11-18 2006-05-18 Ferree Bret A Methods and apparatus for treating spinal stenosis
US20060111715A1 (en) 2004-02-27 2006-05-25 Jackson Roger P Dynamic stabilization assemblies, tool set and method
US20060111713A1 (en) 2004-11-23 2006-05-25 Jackson Roger P Spinal fixation tool set and method
WO2006054111A1 (en) 2004-11-20 2006-05-26 Dajue Wang Spinal prostheses
US20060116677A1 (en) 2004-12-01 2006-06-01 Burd Brian A Side-loading bone anchor
US20060122597A1 (en) 2004-12-02 2006-06-08 Jones Robert J Instruments and methods for adjusting separation distance of vertebral bodies with a minimally invasive spinal stabilization procedure
US20060129239A1 (en) 2004-12-13 2006-06-15 Kwak Seungkyu D Artificial facet joint device having a compression spring
US20060129149A1 (en) 2004-04-08 2006-06-15 Andrew Iott Polyaxial screw
US20060129147A1 (en) 2004-04-16 2006-06-15 Biedermann Motech Gmbh Elastic element for the use in a stabilization device for bones and vertebrae and method for the manufacture of such elastic element
WO2006065607A1 (en) 2004-12-15 2006-06-22 Orthopaedic Innovations, Inc. Multi-axial bone screw mechanism
US20060131421A1 (en) 2004-12-20 2006-06-22 Ncr Corporation Document stacker apparatus and method of stacking documents
US20060142760A1 (en) 2004-12-15 2006-06-29 Stryker Spine Methods and apparatus for modular and variable spinal fixation
US20060142758A1 (en) 2002-09-11 2006-06-29 Dominique Petit Linking element for dynamically stabilizing a spinal fixing system and spinal fixing system comprising same
WO2006068711A2 (en) 2004-12-20 2006-06-29 Jackson Roger P Medical implant fastener with nested set screw and method
WO2006066685A1 (en) 2004-12-17 2006-06-29 Zimmer Gmbh Intervertebral stabilisation system
US20060149228A1 (en) 2003-06-12 2006-07-06 Stratec Medical Device for dynamically stabilizing bones or bone fragments, especially thoracic vertebral bodies
US20060149238A1 (en) 2005-01-04 2006-07-06 Sherman Michael C Systems and methods for spinal stabilization with flexible elements
WO2006071742A2 (en) 2004-12-27 2006-07-06 N Spine, Inc. Adjustable spinal stabilization system
US20060149241A1 (en) 2002-04-18 2006-07-06 Marc Richelsoph Screw and rod fixation assembly and device
US20060149229A1 (en) 2004-12-30 2006-07-06 Kwak Seungkyu Daniel Artificial facet joint
US20060149251A1 (en) 2004-12-22 2006-07-06 Tara Ziolo Bone fixation system
US20060149240A1 (en) 2004-11-23 2006-07-06 Jackson Roger P Polyaxial bone screw with multi-part shank retainer
US20060155277A1 (en) * 2002-03-21 2006-07-13 Peter Metz-Stavenhagen Anchoring element for securing a rod of a device for adjusting a human or animal vertrebal column on a vertreba
US20060161152A1 (en) 2004-10-25 2006-07-20 Alphaspine, Inc. Bone fixation systems and methods of assembling and/or installing the same
US7081116B1 (en) 1999-06-14 2006-07-25 Scient'x Implant for osteosynthesis device in particular of the backbone
US20060166535A1 (en) 2005-01-26 2006-07-27 Brumfield David L Reducing instrument for spinal surgery
US20060167454A1 (en) 2004-11-09 2006-07-27 Depuy Spine, Inc. Minimally invasive spinal fixation guide systems and methods
US20060167455A1 (en) 2003-06-27 2006-07-27 Mecidrea Technologies Vertebral osteosynthesis equipment
US20060173456A1 (en) 2005-01-31 2006-08-03 Hawkes David T Polyaxial pedicle screw assembly
WO2006079531A1 (en) 2005-01-26 2006-08-03 Aesculap Ag & Co. Kg Self-contouring spinal rod
US7090674B2 (en) 2003-11-03 2006-08-15 Spinal, Llc Bone fixation system with low profile fastener
US20060184171A1 (en) 2004-11-17 2006-08-17 Lutz Biedermann Flexible element for use in a stabilization device for bones or vertebrae
US20060184180A1 (en) 2004-04-22 2006-08-17 Augostino Teena M Facet Joint Prosthesis Measurement and Implant Tools
US20060189984A1 (en) 2005-02-22 2006-08-24 Medicinelodge, Inc. Apparatus and method for dynamic vertebral stabilization
US20060189985A1 (en) 2005-02-09 2006-08-24 Lewis David W Device for providing a combination of flexibility and variable force to the spinal column for the treatment of scoliosis
US20060195090A1 (en) 2005-02-10 2006-08-31 Loubert Suddaby Apparatus for and method of aligning a spine
US20060195198A1 (en) 2005-02-22 2006-08-31 Anthony James Interactive orthopaedic biomechanics system
US20060200023A1 (en) 2005-03-04 2006-09-07 Sdgi Holdings, Inc. Instruments and methods for nerve monitoring in spinal surgical procedures
US20060200123A1 (en) 2005-03-04 2006-09-07 Gyrus Ent, L.L.C. Surgical instrument and method
US20060200133A1 (en) 2005-02-22 2006-09-07 Jackson Roger P Polyaxial bone screw assembly
US20060200149A1 (en) 2005-02-22 2006-09-07 Hoy Robert W Polyaxial orhtopedic fastening apparatus
US20060200131A1 (en) * 2005-03-04 2006-09-07 Depuy Spine Sarl Constrained motion bone screw assembly
US20060200130A1 (en) 2005-02-18 2006-09-07 Hawkins Nathaniel E Spinal fixation device and associated method
US20060200132A1 (en) 2005-03-04 2006-09-07 Chao Nam T Instruments and methods for manipulating a vertebra
WO2006096351A1 (en) 2005-03-03 2006-09-14 Accelerated Innovation, Llc Spinal stabilization using bone anchor and anchor seat with tangential locking feature
WO2006096240A2 (en) 2005-03-03 2006-09-14 Accelerated Innovation, Llc Methods and apparatus for vertebral stabilization using sleeved springs
US20060212033A1 (en) 2005-03-03 2006-09-21 Accin Corporation Vertebral stabilization using flexible rods
US20060217716A1 (en) 2005-03-22 2006-09-28 Baker Daniel R Spinal fixation locking mechanism
US20060217719A1 (en) 2005-03-24 2006-09-28 Accin Corporation Method and apparatus for bone stabilization
US20060217713A1 (en) 2005-03-24 2006-09-28 Serhan Hassan A Low profile spinal tethering devices
WO2006104874A2 (en) 2005-03-25 2006-10-05 Blackstone Medical, Inc. Multi-axial connection system
US20060229615A1 (en) 2005-02-18 2006-10-12 Abdou M S Devices and methods for dynamic fixation of skeletal structure
US20060229609A1 (en) 2005-03-18 2006-10-12 Chao-Jan Wang Microadjustment spinal joint fixture
US20060229613A1 (en) 2004-12-31 2006-10-12 Timm Jens P Sheath assembly for spinal stabilization device
US20060229608A1 (en) 2005-03-17 2006-10-12 Foster Thomas A Apparatus and methods for spinal implant with dynamic stabilization system
WO2006110463A1 (en) 2005-04-08 2006-10-19 Warsaw Orthopedic, Inc. Systems, devices and methods for stabilization of the spinal column
US20060241601A1 (en) 2005-04-08 2006-10-26 Trautwein Frank T Interspinous vertebral and lumbosacral stabilization devices and methods of use
US20060241593A1 (en) 2005-04-08 2006-10-26 Sdgi Holdings, Inc. Multi-piece vertebral attachment device
US20060241600A1 (en) 2005-03-23 2006-10-26 Ensign Michael D Percutaneous pedicle screw assembly
US20060241771A1 (en) 2003-08-05 2006-10-26 Southwest Research Institute Artificial functional spinal unit system and method for use
US20060241595A1 (en) 2005-04-22 2006-10-26 Sdgi Holdings, Inc. Force limiting coupling assemblies for spinal implants
US20060247633A1 (en) 2004-12-13 2006-11-02 St. Francis Medical Technologies, Inc. Inter-cervical facet implant with surface enhancements
US20060247658A1 (en) 2005-04-28 2006-11-02 Pond John D Jr Instrument and method for guiding surgical implants and instruments during surgery
US20060247630A1 (en) 2005-04-27 2006-11-02 Andrew Iott Percutaneous vertebral stabilization system
US20060247631A1 (en) 2005-04-27 2006-11-02 Ahn Sae Y Spinal pedicle screw assembly
US20060247624A1 (en) 2005-04-29 2006-11-02 Ezzine Banouskou Orthopedic implant apparatus
WO2006116437A2 (en) 2005-04-25 2006-11-02 Synthes (U.S.A.) Bone anchor with locking cap and method of spinal fixation
WO2006119447A1 (en) 2005-05-04 2006-11-09 K2M, Inc. Mobile spine stabilization device
US20060264936A1 (en) 2004-11-30 2006-11-23 Partin Jason I Systems and methods for bone fixation
US20060260483A1 (en) 2003-09-29 2006-11-23 Stephan Hartmann Device for elastically stabilizing vertebral bodies
US20060264962A1 (en) 2003-09-24 2006-11-23 Chin Kingsley R System and method for spinal implant placement
US20060264935A1 (en) 2005-05-04 2006-11-23 White Patrick M Orthopedic stabilization device
US20060264934A1 (en) 2005-05-18 2006-11-23 Medicinelodge, Inc. System and method for orthopedic implant configuration
US20060264933A1 (en) 2005-05-04 2006-11-23 Baker Daniel R Multistage spinal fixation locking mechanism
US7141051B2 (en) 2003-02-05 2006-11-28 Pioneer Laboratories, Inc. Low profile spinal fixation system
US20060276789A1 (en) 2005-05-27 2006-12-07 Jackson Roger P Polyaxial bone screw with shank articulation pressure insert and method
US20060276792A1 (en) 2005-05-25 2006-12-07 Ensign Michael D Low profile pedicle screw and rod assembly
US20060276787A1 (en) 2005-05-26 2006-12-07 Accin Corporation Pedicle screw, cervical screw and rod
US20060276791A1 (en) 2002-02-13 2006-12-07 Shluzas Alan E Methods for connecting a longitudinal member to a bone portion
US20060282076A1 (en) 2005-06-10 2006-12-14 Depuy Spine, Inc. Posterior dynamic stabilization y-device
US20060282080A1 (en) 2005-06-08 2006-12-14 Accin Corporation Vertebral facet stabilizer
US20060293663A1 (en) 2005-04-21 2006-12-28 Spine Wave, Inc. Dynamic stabilization system for the spine
US20060293657A1 (en) 2003-09-29 2006-12-28 Stephan Hartmann Damping element
US20060293693A1 (en) 2005-06-08 2006-12-28 Innovative Spine, Llc Sleeve assembly for spinal stabilization system and methods of use
US20060293659A1 (en) 2003-07-25 2006-12-28 Alvarez Luis M Vertebral fixation device for the treatment of spondylolisthesis
US20060293666A1 (en) 2005-05-27 2006-12-28 Wilfried Matthis Receiving part for connecting a shank of a bone anchoring element to a rod and bone anchoring device with such a receiving part
WO2007002409A2 (en) 2005-06-22 2007-01-04 Stephen Ritland Dynamic fixation device and method of use
US20070005137A1 (en) 2005-06-30 2007-01-04 Depuy Spine, Inc. Non-linear artificial ligament system
US20070005062A1 (en) 2005-06-20 2007-01-04 Sdgi Holdings, Inc. Multi-directional spinal stabilization systems and methods
US20070005063A1 (en) 2005-06-20 2007-01-04 Sdgi Holdings, Inc. Multi-level multi-functional spinal stabilization systems and methods
US20070016200A1 (en) 2003-04-09 2007-01-18 Jackson Roger P Dynamic stabilization medical implant assemblies and methods
US20070016190A1 (en) 2005-07-14 2007-01-18 Medical Device Concepts Llc Dynamic spinal stabilization system
US20070032123A1 (en) 2005-08-03 2007-02-08 Timm Jens P Spring junction and assembly methods for spinal device
US20070038219A1 (en) 2005-07-08 2007-02-15 Wilfried Matthis Bone anchoring element
US20070043359A1 (en) 2005-07-22 2007-02-22 Moti Altarac Systems and methods for stabilization of bone structures
US20070043358A1 (en) 2005-08-05 2007-02-22 Sdgi Holdings, Inc. Coupling assemblies for spinal implants
US20070043364A1 (en) 2005-06-17 2007-02-22 Cawley Trace R Spinal correction system with multi-stage locking mechanism
US20070043357A1 (en) 2005-07-29 2007-02-22 X-Spine Systems, Inc. Capless multiaxial screw and spinal fixation assembly and method
US20070043356A1 (en) 2005-07-26 2007-02-22 Timm Jens P Dynamic spine stabilization device with travel-limiting functionality
US20070049936A1 (en) 2005-08-26 2007-03-01 Dennis Colleran Alignment instrument for dynamic spinal stabilization systems
US20070049933A1 (en) 2005-08-30 2007-03-01 Ahn Sae Y Multi-axial spinal pedicle screw
US20070049931A1 (en) 2005-08-26 2007-03-01 Sdgi Holdings, Inc. Instruments for minimally invasive stabilization of bony structures
US20070055236A1 (en) 2005-09-02 2007-03-08 Zimmer Spine, Inc. Translaminar facet augmentation and flexible spinal stabilization
US20070055244A1 (en) 2004-02-27 2007-03-08 Jackson Roger P Dynamic fixation assemblies with inner core and outer coil-like member
US20070055240A1 (en) 2005-07-08 2007-03-08 Wilfried Matthis Bone anchoring device
US20070055239A1 (en) 2004-06-09 2007-03-08 Spinal Generations, Llc Spinal fixation system
US20070055241A1 (en) 2005-07-12 2007-03-08 Wilfried Matthis Bone anchoring device
US20070055242A1 (en) 2005-07-27 2007-03-08 Bailly Frank E Device for securing spinal rods
US20070073290A1 (en) 2005-09-13 2007-03-29 Boehm Frank H Jr Insertion of artificial/prosthetic facet joints with ballotable/compressible joint space component
US20070073293A1 (en) 2003-10-16 2007-03-29 Martz Erik O System and method for flexible correction of bony motion segment
US20070073289A1 (en) 2005-09-27 2007-03-29 Depuy Spine, Inc. Posterior dynamic stabilization systems and methods
US20070073291A1 (en) 2005-09-12 2007-03-29 Seaspine, Inc. Implant system for Osteosynthesis
US20070073294A1 (en) 2003-09-24 2007-03-29 Spinefrontier Lls System and method for implanting spinal stabilization devices
US20070078460A1 (en) 2005-08-25 2007-04-05 Robert Frigg Methods of spinal fixation and instrumentation
WO2007038350A2 (en) 2005-09-23 2007-04-05 Synthes (Usa) Bone support apparatus
US20070078461A1 (en) 2005-09-27 2007-04-05 Shluzas Alan E Methods and apparatuses for stabilizing the spine through an access device
WO2007040888A2 (en) 2005-09-29 2007-04-12 K2M, Inc. Single action anti-torque rod reducer
WO2007041702A2 (en) 2005-10-04 2007-04-12 Alphaspine, Inc. Pedicle screw system with provisional locking aspects
US20070083199A1 (en) 2003-09-04 2007-04-12 Abbott Spine Spinal implant
WO2007040750A2 (en) 2005-09-29 2007-04-12 K2M, Inc. Spinal fixation system having locking and unlocking devices for use with a multi-planar taper lock screw
US20070088357A1 (en) * 2005-10-18 2007-04-19 Sdgi Holdings, Inc. Adjustable bone anchor assembly
US20070088359A1 (en) 2005-02-07 2007-04-19 Woods Richard W Universal dynamic spine stabilization device and method of use
US20070093826A1 (en) 2005-10-04 2007-04-26 Hawkes David T Modular pedicle screw systems and methods of intra-operatively assembling the same
US20070093818A1 (en) 2005-08-03 2007-04-26 Lutz Biedermann Bone anchoring device
US20070093833A1 (en) 2004-05-03 2007-04-26 Kuiper Mark K Crossbar spinal prosthesis having a modular design and related implantation methods
US20070093815A1 (en) 2005-10-11 2007-04-26 Callahan Ronald Ii Dynamic spinal stabilizer
US20070090238A1 (en) * 2005-10-20 2007-04-26 Sdgi Holdings, Inc. Bottom loading multi-axial screw assembly
US20070093819A1 (en) 2005-09-19 2007-04-26 Albert Todd J Bone screw apparatus, system and method
US20070093814A1 (en) 2005-10-11 2007-04-26 Callahan Ronald Ii Dynamic spinal stabilization systems
US20070093813A1 (en) 2005-10-11 2007-04-26 Callahan Ronald Ii Dynamic spinal stabilizer
US20070093824A1 (en) 2005-09-22 2007-04-26 Hestad Hugh D Pedicle fixation rod alignment system
US20070100341A1 (en) 2004-10-20 2007-05-03 Reglos Joey C Systems and methods for stabilization of bone structures
WO2007053566A2 (en) 2005-10-31 2007-05-10 Stryker Spine System and method for dynamic vertebral stabilization
US20070118117A1 (en) 2005-10-20 2007-05-24 Ebi, L.P. Bone fixation assembly
US20070118118A1 (en) 2005-10-21 2007-05-24 Depuy Spine, Inc. Adjustable bone screw assembly
US20070118122A1 (en) 2005-11-18 2007-05-24 Life Spine, Llc Dynamic spinal stabilization device and systems
US20070118123A1 (en) 2005-11-21 2007-05-24 Strausbaugh William L Polyaxial bone anchors with increased angulation
US20070118119A1 (en) 2005-11-18 2007-05-24 Zimmer Spine, Inc. Methods and device for dynamic stabilization
US20070118124A1 (en) 2001-10-23 2007-05-24 Lutz Biedermann Bone fixation device and screw therefor
WO2007060534A2 (en) 2005-11-24 2007-05-31 Giuseppe Calvosa Modular vertebral stabilizer
US20070123862A1 (en) 2004-10-25 2007-05-31 Warnick David R Bone fixation system and method for using the same
US20070123870A1 (en) 2005-07-18 2007-05-31 Jeon Dong M Bi-polar screw assembly
US20070124249A1 (en) 2005-11-30 2007-05-31 Naveen Aerrabotu Methods and devices for image and digital rights management
US20070156142A1 (en) 2005-12-30 2007-07-05 Sdgi Holdings, Inc. Top-tightening side-locking spinal connector assembly
WO2007075454A1 (en) 2005-12-19 2007-07-05 Synthes (U.S.A) Polyaxial bone anchor with headless pedicle screw
US20070161997A1 (en) 2005-05-12 2007-07-12 Lanx, Llc Dynamic spinal stabilization
US20070161986A1 (en) 2005-12-13 2007-07-12 Levy Mark M Polyaxial fastener assembly
US20070161995A1 (en) 2005-10-06 2007-07-12 Trautwein Frank T Polyaxial Screw
US20070161999A1 (en) 2005-11-17 2007-07-12 Lutz Biedermann Bone anchoring device
US20070161991A1 (en) 2004-10-20 2007-07-12 Moti Altarac Systems and methods for posterior dynamic stabilization of the spine
US20070161996A1 (en) 2005-10-12 2007-07-12 Lutz Biedermann Bone anchoring device
US20070161994A1 (en) 2005-09-30 2007-07-12 Lowery Gary L Hinged Polyaxial Screw and methods of use
US20070167949A1 (en) 2004-10-20 2007-07-19 Moti Altarac Screw systems and methods for use in stabilization of bone structures
US20070167948A1 (en) 2005-12-19 2007-07-19 Abdou M S Devices and methods for inter-vertebral orthopedic device placement
US20070173819A1 (en) 2006-01-11 2007-07-26 Robin Sandlin Spinal implant fixation assembly
US20070173820A1 (en) 2006-01-13 2007-07-26 Sdgi Holdings, Inc. Materials, devices, and methods for treating multiple spinal regions including the anterior region
US20070173832A1 (en) 2004-10-20 2007-07-26 Vertiflex, Inc. Systems and methods for posterior dynamic stabilization of the spine
US20070173822A1 (en) 2006-01-13 2007-07-26 Sdgi Holdings, Inc. Use of a posterior dynamic stabilization system with an intradiscal device
US20070173818A1 (en) 2006-01-09 2007-07-26 Zimmer Spine, Inc. Posterior dynamic stabilization of spine
US20070173828A1 (en) 2006-01-20 2007-07-26 Depuy Spine, Inc. Spondylolistheses correction system and method of correcting spondylolistheses
WO2007087628A1 (en) 2006-01-27 2007-08-02 Warsaw Orthopedic, Inc. Pivoting joints for spinal implants including designed resistance to motion and methods of use
WO2007087469A1 (en) 2006-01-26 2007-08-02 Warsaw Orthopedic, Inc. Spinal anchor assemblies having extended receivers
WO2007090021A1 (en) 2006-01-31 2007-08-09 Warsaw Orthopedic, Inc Expandable spinal rods and methods of use
US20070191846A1 (en) 2006-01-31 2007-08-16 Aurelien Bruneau Expandable spinal rods and methods of use
US20070191839A1 (en) 2006-01-27 2007-08-16 Sdgi Holdings, Inc. Non-locking multi-axial joints in a vertebral implant and methods of use
WO2007092056A1 (en) 2006-02-06 2007-08-16 Stryker Spine Rod contouring apparatus and method for percutaneous pedicle screw extension
US20070191841A1 (en) 2006-01-27 2007-08-16 Sdgi Holdings, Inc. Spinal rods having different flexural rigidities about different axes and methods of use
WO2007092870A2 (en) 2006-02-07 2007-08-16 Warsaw Orthopedic, Inc. Surgical instruments and techniques for percutaneous placement of spinal stabilization elements
US20070198014A1 (en) 2006-02-07 2007-08-23 Sdgi Holdings, Inc. Articulating connecting member and anchor systems for spinal stabilization
WO2007097905A2 (en) 2006-02-17 2007-08-30 Holt Development L.L.C. Apparatus and method for flexible spinal fixation
US20070208344A1 (en) 2006-03-01 2007-09-06 Sdgi Holdings, Inc. Devices for securing elongated spinal connecting elements in bone anchors
US20070213720A1 (en) 2006-03-08 2007-09-13 Southwest Research Institute Dynamic interbody device
US20070225711A1 (en) 2006-03-22 2007-09-27 Ensign Michael D Low top bone fixation system and method for using the same
US20070225708A1 (en) 2005-12-23 2007-09-27 Lutz Biedermann Dynamic stabilization device for bones or vertebrae
US20070225707A1 (en) 2006-03-22 2007-09-27 Sdgi Holdings, Inc. Orthopedic spinal devices fabricated from two or more materials
WO2007109470A2 (en) 2006-03-16 2007-09-27 Zimmer Spine, Inc. Spinal fixation device with variable stiffness
US20070233085A1 (en) 2005-12-23 2007-10-04 Lutz Biedermann Flexible stabilization device for dynamic stabilization of bones or vertebrae
US20070233095A1 (en) 2004-10-07 2007-10-04 Schlaepfer Fridolin J Device for dynamic stabilization of bones or bone fragments
US20070233155A1 (en) 2005-12-07 2007-10-04 Lovell John R Device and method for holding and inserting one or more components of a pedicle screw assembly
US20070233092A1 (en) 2006-02-24 2007-10-04 Falahee Mark H Dynamic/static facet fixation device and method
US20070233094A1 (en) 2006-03-29 2007-10-04 Dennis Colleran Dynamic motion spinal stabilization system
US20070233073A1 (en) 2006-03-02 2007-10-04 Sdgi Holdings, Inc. Spinal rod characterized by a time-varying stiffness
US20070233086A1 (en) 2006-01-11 2007-10-04 Jurgen Harms Bone anchoring assembly
US20070233078A1 (en) 2006-01-27 2007-10-04 Justis Jeff R Pivoting joints for spinal implants including designed resistance to motion and methods of use
US20070233080A1 (en) 2006-03-20 2007-10-04 Sean Joo Na Poly-axial bone screw mating seat
US20070233089A1 (en) 2006-02-17 2007-10-04 Endius, Inc. Systems and methods for reducing adjacent level disc disease
WO2007114834A1 (en) 2006-04-05 2007-10-11 Dong Myung Jeon Multi-axial, double locking bone screw assembly
US20070244481A1 (en) 2006-04-17 2007-10-18 Timm Jens P Spinal stabilization device with weld cap
US20070244482A1 (en) 2006-04-18 2007-10-18 Joseph Aferzon Pedicle screw with vertical adjustment
WO2007118045A1 (en) 2006-04-07 2007-10-18 Warsaw Orthopedic, Inc. Devices and methods for receiving spinal connecting elements
WO2007121057A1 (en) 2006-04-10 2007-10-25 Warsaw Orthopedic, Inc. Multi-piece circumferential retaining ring
WO2007121030A1 (en) 2006-04-11 2007-10-25 Warsaw Orthopedic, Inc. Pedicle screw spinal rod connector arrangement
WO2007121271A2 (en) 2006-04-11 2007-10-25 Synthes (U.S.A) Minimally invasive fixation system
US20070250061A1 (en) 2006-04-24 2007-10-25 Spinefrontier Lls Spine fixation method and apparatus
WO2007124249A1 (en) 2006-04-20 2007-11-01 Warsaw Orthopedic, Inc Vertebral stabilizer
WO2007124222A1 (en) 2006-04-20 2007-11-01 Warsaw Orthopedic, Inc. Polyaxial bone anchor and method of spinal fixation
WO2007123920A2 (en) 2006-04-18 2007-11-01 Joseph Nicholas Logan Spinal rod system
WO2007127604A2 (en) 2006-04-25 2007-11-08 Warsaw Orthopedic, Inc. Surgical instruments and techniques for controlling spinal motion segments with positioning of spinal stabilization elements
WO2007127595A2 (en) 2006-04-28 2007-11-08 Warsaw Orthopedic, Inc. Open axle surgical implant
US20070260243A1 (en) 2004-11-02 2007-11-08 Kazuo Kagami Bone Correction Device
US7294128B2 (en) 2002-04-09 2007-11-13 Nas Medical Technologies, Inc. Bone fixation apparatus
US7294127B2 (en) 2002-03-05 2007-11-13 Baylis Medical Company Inc. Electrosurgical tissue treatment method
WO2007130840A1 (en) 2006-05-01 2007-11-15 Warsaw Orthopedic, Inc Locking device and method, for use in a bone stabilization system, employing a set screw member and deformable saddle member
WO2007130941A2 (en) 2006-05-05 2007-11-15 Warsaw Orthopedic, Inc. Bone attachment devices with a threaded interconnection including a solid lubricious material
WO2007130835A2 (en) 2006-05-01 2007-11-15 Warsaw Orthopedic, Inc Bone anchor system utilizing a molded coupling member for coupling a bone anchor to a stabilization member and method therefor
US20070270837A1 (en) 2006-05-08 2007-11-22 Sdgi Holdings, Inc. Load bearing flexible spinal connecting element
US20070270836A1 (en) 2006-05-08 2007-11-22 Sdgi Holdings, Inc. Dynamic spinal stabilization members and methods
US20070270869A1 (en) 2006-04-25 2007-11-22 Young John S Surgical instrumentation for rod reduction
US20070270838A1 (en) 2006-05-08 2007-11-22 Sdgi Holdings, Inc. Dynamic spinal stabilization device with dampener
US20070270843A1 (en) 2006-05-16 2007-11-22 Wilfried Matthis Longitudinal member for use in spinal or trauma surgery and stabilization device with such a longitudinal member
US20070270821A1 (en) 2006-04-28 2007-11-22 Sdgi Holdings, Inc. Vertebral stabilizer
US20070270813A1 (en) * 2006-04-12 2007-11-22 Laszlo Garamszegi Pedicle screw assembly
US20070276380A1 (en) 2003-09-24 2007-11-29 Tae-Ahn Jahng Spinal stabilization device
US20070276379A1 (en) 2005-02-09 2007-11-29 Miller Keith E Reducing instrument for spinal surgery
US20070276371A1 (en) 2004-02-10 2007-11-29 Baynham Bret O Dynamic cervical plate
WO2007138270A2 (en) 2006-05-26 2007-12-06 Mark Richard Cunliffe A bone fixation device
US20070288009A1 (en) 2006-06-08 2007-12-13 Steven Brown Dynamic spinal stabilization device
US20070288012A1 (en) 2006-04-21 2007-12-13 Dennis Colleran Dynamic motion spinal stabilization system and device
US20070288004A1 (en) 2006-06-05 2007-12-13 Luis Marquez Alvarez Vertebral fixation device and tool for assembling the device
US20070293862A1 (en) 2005-09-30 2007-12-20 Jackson Roger P Dynamic stabilization connecting member with elastic core and outer sleeve
WO2007146032A2 (en) 2006-06-07 2007-12-21 Disc Motion Technologies, Inc. Pedicle screw system
WO2008005740A1 (en) 2006-07-07 2008-01-10 Warsaw Orthopedic, Inc Minimal spacing spinal stabilization device and method
US20080009862A1 (en) 2006-06-16 2008-01-10 Zimmer Spine, Inc. Removable polyaxial housing for a pedicle screw
WO2008006098A2 (en) 2006-07-07 2008-01-10 Warsaw Orthopedic, Inc. Dynamic constructs for spinal stablization
WO2008008511A2 (en) 2006-07-14 2008-01-17 Laszlo Garamszegi Pedicle screw assembly with inclined surface seat
US20080015578A1 (en) 2006-07-12 2008-01-17 Dave Erickson Orthopedic implants comprising bioabsorbable metal
US20080015597A1 (en) 2006-04-28 2008-01-17 Whipple Dale E Large diameter bone anchor assembly
US20080015579A1 (en) 2006-04-28 2008-01-17 Whipple Dale E Large diameter bone anchor assembly
US20080015580A1 (en) 2006-04-28 2008-01-17 Nam Chao Large diameter bone anchor assembly
US20080021454A1 (en) 2006-07-21 2008-01-24 Depuy Spine, Inc. Sacral or iliac connector
US20080021455A1 (en) 2006-07-21 2008-01-24 Depuy Spine, Inc. Articulating Sacral or Iliac Connector
US20080021465A1 (en) 2006-07-20 2008-01-24 Shadduck John H Spine treatment devices and methods
US20080021464A1 (en) 2006-07-19 2008-01-24 Joshua Morin System and method for a spinal implant locking assembly
US20080021462A1 (en) 2006-07-24 2008-01-24 Warsaw Orthopedic Inc. Spinal stabilization implants
US20080021466A1 (en) 2006-07-20 2008-01-24 Shadduck John H Spine treatment devices and methods
WO2008013892A2 (en) 2006-07-24 2008-01-31 Nuvasive, Inc. Systems and methods for dynamic spinal stabilization
US20080027432A1 (en) 2006-07-27 2008-01-31 Strauss Kevin R Multi-planar, taper lock screw
US20080039843A1 (en) 2006-08-11 2008-02-14 Abdou M S Spinal motion preservation devices and methods of use
US20080045951A1 (en) 2006-08-16 2008-02-21 Depuy Spine, Inc. Modular multi-level spine stabilization system and method
US20080045955A1 (en) 2006-08-16 2008-02-21 Berrevoets Gregory A Spinal Rod Anchor Device and Method
US20080051787A1 (en) 2006-08-22 2008-02-28 Neuropro Technologies, Inc. Percutaneous system for dynamic spinal stabilization
US20080051780A1 (en) 2006-08-04 2008-02-28 Zimmer Spine, Inc. Spinal rod connector
US20080058812A1 (en) 2006-02-03 2008-03-06 Thomas Zehnder Vertebral column implant
WO2008027860A2 (en) 2006-08-31 2008-03-06 Warsaw Orthopedic, Inc. Polymer rods for spinal applications
US20080065071A1 (en) 2006-09-07 2008-03-13 Kyung-Woo Park Flexible rod manufacturing apparatus and method for a spinal fixation and the flexible rod manufactured through the same
US20080065079A1 (en) 2006-09-11 2008-03-13 Aurelien Bruneau Spinal Stabilization Devices and Methods of Use
US20080065073A1 (en) 2006-09-08 2008-03-13 Michael Perriello Offset dynamic motion spinal stabilization system
US20080071274A1 (en) 2006-09-15 2008-03-20 Ensign Michael D Percutaneous Screw Assembly and Placement Method
US20080071273A1 (en) 2006-09-15 2008-03-20 Hawkes David T Dynamic Pedicle Screw System
WO2008033742A1 (en) 2006-09-14 2008-03-20 Warsaw Orthopedic, Inc. Hybrid bone fixation apparatus
US20080077138A1 (en) 2006-09-26 2008-03-27 Cohen Dan S Percutaneous instrument assembly
US20080077139A1 (en) 2002-10-30 2008-03-27 Landry Michael E Spinal stabilization systems with quick-connect sleeve assemblies for use in surgical procedures
US20080077143A1 (en) 2006-09-25 2008-03-27 Zimmer Spine, Inc. Apparatus for connecting a longitudinal member to a bone portion
WO2008036975A2 (en) 2006-09-22 2008-03-27 Vessa Paul P Flexible spinal stabilization
US20080077136A1 (en) 2006-09-25 2008-03-27 Stryker Spine Rod inserter and rod with reduced diameter end
WO2008037256A2 (en) 2006-09-28 2008-04-03 3L-Ludvigsen A/S Rotary ultrasonic sealer
WO2008039777A2 (en) 2006-09-26 2008-04-03 Synthes Usa, Llc Transconnector
WO2008042948A2 (en) 2006-10-05 2008-04-10 Javin Pierce Anchor assembly for spinal implant system
US20080086131A1 (en) 2006-10-06 2008-04-10 Depuy Spine, Inc. Bone screw fixation
US20080086132A1 (en) 2006-08-24 2008-04-10 Lutz Biedermann Bone anchoring device
US20080091213A1 (en) 2004-02-27 2008-04-17 Jackson Roger P Tool system for dynamic spinal implants
WO2008048923A2 (en) 2006-10-17 2008-04-24 Warsaw Orthopedic, Inc. Central rod connector and t-rod
US20080097441A1 (en) 2004-10-20 2008-04-24 Stanley Kyle Hayes Systems and methods for posterior dynamic stabilization of the spine
WO2008048953A2 (en) 2006-10-16 2008-04-24 Innovative Delta Technology Llc Bone screw and associated assembly and methods of use thereof
US20080103502A1 (en) 2006-04-26 2008-05-01 Warsaw Orthopedic, Inc. Revision Fixation Plate and Method of Use
WO2008051737A1 (en) 2006-10-26 2008-05-02 Warsaw Orthopedic, Inc. Bone screw
US20080108992A1 (en) 2006-11-08 2008-05-08 Ebi, L.P. Multi-axial bone fixation apparatus
US20080114362A1 (en) 2006-11-10 2008-05-15 Warsaw Orthopedic, Inc. Keyed Crown Orientation For Multi-Axial Screws
US20080114404A1 (en) 2006-09-15 2008-05-15 Wilfried Matthis Bone anchoring device
US20080114403A1 (en) 2006-11-09 2008-05-15 Zimmer Spine, Inc. Minimally invasive pedicle screw access system and associated method
US20080119849A1 (en) 2006-11-20 2008-05-22 Depuy Spine Inc. Break-off screw extensions
US20080119858A1 (en) 2006-11-16 2008-05-22 Spine Wave, Inc. Multi-Axial Spinal Fixation System
EP1925263A1 (en) 2006-11-22 2008-05-28 BIEDERMANN MOTECH GmbH Bone anchoring device
US20080125813A1 (en) 2006-09-21 2008-05-29 Warsaw Orthopedic, Inc. Low profile vertebral stabilization systems and methods
US20080125777A1 (en) 2006-11-27 2008-05-29 Warsaw Orthopedic, Inc. Vertebral Stabilizer Having Adjustable Rigidity
US20080125787A1 (en) 2006-11-27 2008-05-29 Doubler Robert L Dynamic rod
US20080140136A1 (en) 2003-06-18 2008-06-12 Jackson Roger P Polyaxial bone screw with cam capture
WO2008070716A2 (en) 2006-12-05 2008-06-12 Spine Wave, Inc. Dynamic stabilization devices and methods
WO2008069420A1 (en) 2006-12-07 2008-06-12 Soo-Kyung Kim Spinal stabilization apparatus
US20080140076A1 (en) 2005-09-30 2008-06-12 Jackson Roger P Dynamic stabilization connecting member with slitted segment and surrounding external elastomer
US20080140133A1 (en) 2006-12-08 2008-06-12 Randall Noel Allard Methods and Devices for Treating a Multi-Level Spinal Deformity
US20080140075A1 (en) 2006-12-07 2008-06-12 Ensign Michael D Press-On Pedicle Screw Assembly
US20080147122A1 (en) 2006-10-12 2008-06-19 Jackson Roger P Dynamic stabilization connecting member with molded inner segment and surrounding external elastomer
US20080147129A1 (en) 2006-11-17 2008-06-19 Lutz Biedermann Bone anchoring device
US20080147195A1 (en) 2006-12-15 2008-06-19 Depuy Spine, Inc. Facet joint prosthesis
US20080147121A1 (en) 2006-01-27 2008-06-19 Warsaw Orthopedic, Inc. Multi-Axial Screw Assembly
US20080154315A1 (en) 2005-02-22 2008-06-26 Jackson Roger P Polyaxial bone screw with spherical capture, compression and alignment and retention structures
US20080154279A1 (en) 2006-12-22 2008-06-26 Joerg Schumacher Surgical instrument and osteosynthesis device
US20080161857A1 (en) 2006-10-06 2008-07-03 Zimmer Spine, Inc. Spinal stabilization system with flexible guides
US20080161863A1 (en) 2006-12-28 2008-07-03 Depuy Spine, Inc. Spinal anchoring screw
WO2008078163A2 (en) 2006-12-21 2008-07-03 Ldr Medical Vertebral support device
US20080167687A1 (en) 2007-01-03 2008-07-10 Dennis Colleran Dynamic linking member for spine stabilization system
WO2008082737A2 (en) 2007-01-02 2008-07-10 Zimmer Spine, Inc. Spine stiffening device and associated method
US20080172091A1 (en) 2007-01-12 2008-07-17 Warsaw Orthopedic, Inc. Spinal Stabilization System
US20080172090A1 (en) 2007-01-12 2008-07-17 Warsaw Orthopedic, Inc. Spinal Prosthesis Systems
US20080172096A1 (en) 2007-01-15 2008-07-17 Ebi, L.P. Spinal fixation device
US20080177322A1 (en) 2006-12-29 2008-07-24 Melissa Davis Spinal stabilization systems and methods
US20080177388A1 (en) 2007-01-18 2008-07-24 Warsaw Orthopedic, Inc. Variable Stiffness Support Members
US20080177317A1 (en) 2007-01-18 2008-07-24 Jackson Roger P Dynamic stabilization connecting member with cord connection
US20080177321A1 (en) 2006-10-17 2008-07-24 Warsaw Orthopedic, Inc. Multi-axial bone attachment member
US20080177323A1 (en) 2006-10-18 2008-07-24 Null William B Orthopedic revision connector
US20080177316A1 (en) 2006-11-30 2008-07-24 Bergeron Brian J Apparatus and methods for spinal implant
US20080183215A1 (en) 2004-10-20 2008-07-31 Moti Altarac Multi-level minimally invasive spinal stabilization system
US20080183223A1 (en) 2005-09-26 2008-07-31 Jeon Dong M Hybrid jointed bone screw system
US20080183212A1 (en) 2007-01-30 2008-07-31 Warsaw Orthopedic, Inc. Dynamic Spinal Stabilization Assembly with Sliding Collars
US20080183213A1 (en) 2007-01-30 2008-07-31 Warsaw Orthopedic, Inc. Collar Bore Configuration for Dynamic Spinal Stabilization Assembly
US20080183216A1 (en) 2007-01-26 2008-07-31 Jackson Roger P Dynamic stabilization member with molded connection
US20080183219A1 (en) 2003-12-17 2008-07-31 Morton Bertram Anti-backout arthroscopic uni-compartmental prosthesis
DE102007055745A1 (en) 2006-12-10 2008-07-31 Paradigm Spine, Llc Spinal stabilization unit for treating spinal pathologies in patient, has anchoring system with anchors to cooperate with arms of coupler to attach coupler to bone, where one arm is connected to body of coupler at connection
US20080188898A1 (en) 2004-11-23 2008-08-07 Jackson Roger P Polyaxial bone screw with multi-part shank retainer and pressure insert
US20080195159A1 (en) 2005-02-08 2008-08-14 Henning Kloss Spine Fixator
US20080195153A1 (en) 2007-02-08 2008-08-14 Matthew Thompson Dynamic spinal deformity correction
US20080195155A1 (en) 2007-02-12 2008-08-14 Jeffrey Hoffman Locking instrument for implantable fixation device
WO2008100590A1 (en) 2007-02-14 2008-08-21 Flex Technology Inc Flexible spine components
US20080200918A1 (en) 2007-02-12 2008-08-21 James Spitler Pedicle screw driver
US20080200956A1 (en) 2007-02-19 2008-08-21 Tutela Medicus, Llc Low Profile Orthopedic Fastener Assembly Having Enhanced Flexibility
US20080215100A1 (en) 2006-12-22 2008-09-04 Wilfried Matthis Bone anchoring device
US20080215095A1 (en) 2007-02-23 2008-09-04 Lutz Biedermann Stabilization device for stabilizing bones of a vertebra and rod connector used therefor
US20080228184A1 (en) 2007-03-15 2008-09-18 Zimmer Spine, Inc. System and method for minimally invasive spinal surgery
US20080234737A1 (en) 2007-03-16 2008-09-25 Zimmer Spine, Inc. Dynamic spinal stabilization system and method of using the same
US20080234736A1 (en) 2007-02-28 2008-09-25 Warsaw Orthopedic, Inc. Vertebral Stabilizer
US20080234739A1 (en) 2007-03-13 2008-09-25 Zimmer Spine, Inc. Dynamic spinal stabilization system and method of using the same
US20080234759A1 (en) 2005-04-27 2008-09-25 Trinity Orthopedics, Llc Mono-Planar Pedicle Screw Method, System and Kit
US20080234738A1 (en) 2007-03-23 2008-09-25 Zimmer Gmbh System and method for insertion of flexible spinal stabilization element
US20080234744A1 (en) 2007-03-21 2008-09-25 Emmanuel Zylber Spinal stabilization system with rigid and flexible elements
US20080234756A1 (en) 2002-11-19 2008-09-25 John Sutcliffe Pedicle Screw
WO2008118295A2 (en) 2007-03-26 2008-10-02 Laszlo Garamszegi Bottom-loading pedicle screw assembly
US20080243193A1 (en) 2005-05-25 2008-10-02 Ensign Michael D Low Profile Pedicle Screw Assembly